Home / 1,001,010,385.80-1,501,515,578.70-571,028,689.80

Finding the Fourth Proportional to 1,001,010,385.80, 1,501,515,578.70 and 571,028,689.80

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Solution

The fourth proportional to 1,001,010,385.80, 1,501,515,578.70 and 571,028,689.80 is: 856,543,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,010,385.80 : 1,501,515,578.70 = 571,028,689.80 : x
  2. Step 2: Convert to fraction form
    1,001,010,385.80/1,501,515,578.70 = 571,028,689.80/x
  3. Step 3: Cross multiply
    1,001,010,385.80x = 1,501,515,578.70 × 571,028,689.80
  4. Step 4: Simplify right side
    1,001,010,385.80x = 857,408,473,619,349,760
  5. Step 5: Solve for x
    x = 857,408,473,619,349,760/1,001,010,385.80
  6. Step 6: Final answer
    x = 856,543,034.70

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Half scale
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Double scale
Find fourth proportional to 1,001,010,386.80, 1,501,515,580.20 and 571,028,690.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.