Home / 10,513,114.90-15,744,789.15-7,128,999.70

Finding the Fourth Proportional to 10,513,114.90, 15,744,789.15 and 7,128,999.70

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Solution

The fourth proportional to 10,513,114.90, 15,744,789.15 and 7,128,999.70 is: 10,676,626.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513,114.90 : 15,744,789.15 = 7,128,999.70 : x
  2. Step 2: Convert to fraction form
    10,513,114.90/15,744,789.15 = 7,128,999.70/x
  3. Step 3: Cross multiply
    10,513,114.90x = 15,744,789.15 × 7,128,999.70
  4. Step 4: Simplify right side
    10,513,114.90x = 112,244,597,126,913.27
  5. Step 5: Solve for x
    x = 112,244,597,126,913.27/10,513,114.90
  6. Step 6: Final answer
    x = 10,676,626.12

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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.