Home / 5,123,415.80-7,685,123.70-1,577,559.80

Finding the Fourth Proportional to 5,123,415.80, 7,685,123.70 and 1,577,559.80

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Solution

The fourth proportional to 5,123,415.80, 7,685,123.70 and 1,577,559.80 is: 2,366,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123,415.80 : 7,685,123.70 = 1,577,559.80 : x
  2. Step 2: Convert to fraction form
    5,123,415.80/7,685,123.70 = 1,577,559.80/x
  3. Step 3: Cross multiply
    5,123,415.80x = 7,685,123.70 × 1,577,559.80
  4. Step 4: Simplify right side
    5,123,415.80x = 12,123,742,207,147.26
  5. Step 5: Solve for x
    x = 12,123,742,207,147.26/5,123,415.80
  6. Step 6: Final answer
    x = 2,366,339.70

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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.