Home / 1,578,936,001.80-2,368,404,002.70-430,078,657.80

Finding the Fourth Proportional to 1,578,936,001.80, 2,368,404,002.70 and 430,078,657.80

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Solution

The fourth proportional to 1,578,936,001.80, 2,368,404,002.70 and 430,078,657.80 is: 645,117,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,936,001.80 : 2,368,404,002.70 = 430,078,657.80 : x
  2. Step 2: Convert to fraction form
    1,578,936,001.80/2,368,404,002.70 = 430,078,657.80/x
  3. Step 3: Cross multiply
    1,578,936,001.80x = 2,368,404,002.70 × 430,078,657.80
  4. Step 4: Simplify right side
    1,578,936,001.80x = 1,018,600,014,609,363,584
  5. Step 5: Solve for x
    x = 1,018,600,014,609,363,584/1,578,936,001.80
  6. Step 6: Final answer
    x = 645,117,986.70

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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.