Home / 8,742,721.60-13,114,082.40-7,147,086.40

Finding the Fourth Proportional to 8,742,721.60, 13,114,082.40 and 7,147,086.40

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Solution

The fourth proportional to 8,742,721.60, 13,114,082.40 and 7,147,086.40 is: 10,720,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742,721.60 : 13,114,082.40 = 7,147,086.40 : x
  2. Step 2: Convert to fraction form
    8,742,721.60/13,114,082.40 = 7,147,086.40/x
  3. Step 3: Cross multiply
    8,742,721.60x = 13,114,082.40 × 7,147,086.40
  4. Step 4: Simplify right side
    8,742,721.60x = 93,727,479,969,519.38
  5. Step 5: Solve for x
    x = 93,727,479,969,519.38/8,742,721.60
  6. Step 6: Final answer
    x = 10,720,629.60

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Double scale
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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.