Home / 10,377,320.40-15,523,990.20-9,117,608.40

Finding the Fourth Proportional to 10,377,320.40, 15,523,990.20 and 9,117,608.40

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Solution

The fourth proportional to 10,377,320.40, 15,523,990.20 and 9,117,608.40 is: 13,639,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,377,320.40 : 15,523,990.20 = 9,117,608.40 : x
  2. Step 2: Convert to fraction form
    10,377,320.40/15,523,990.20 = 9,117,608.40/x
  3. Step 3: Cross multiply
    10,377,320.40x = 15,523,990.20 × 9,117,608.40
  4. Step 4: Simplify right side
    10,377,320.40x = 141,541,663,449,037.69
  5. Step 5: Solve for x
    x = 141,541,663,449,037.69/10,377,320.40
  6. Step 6: Final answer
    x = 13,639,519.45

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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.