Home / 10,254,864.30-15,382,296.45-6,428,489.10

Finding the Fourth Proportional to 10,254,864.30, 15,382,296.45 and 6,428,489.10

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Solution

The fourth proportional to 10,254,864.30, 15,382,296.45 and 6,428,489.10 is: 9,642,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,254,864.30 : 15,382,296.45 = 6,428,489.10 : x
  2. Step 2: Convert to fraction form
    10,254,864.30/15,382,296.45 = 6,428,489.10/x
  3. Step 3: Cross multiply
    10,254,864.30x = 15,382,296.45 × 6,428,489.10
  4. Step 4: Simplify right side
    10,254,864.30x = 98,884,925,061,793.69
  5. Step 5: Solve for x
    x = 98,884,925,061,793.69/10,254,864.30
  6. Step 6: Final answer
    x = 9,642,733.65

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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.