Home / 12,715,833.38-17,547,315.90-7,209,578.66

Finding the Fourth Proportional to 12,715,833.38, 17,547,315.90 and 7,209,578.66

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Solution

The fourth proportional to 12,715,833.38, 17,547,315.90 and 7,209,578.66 is: 9,948,915.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715,833.38 : 17,547,315.90 = 7,209,578.66 : x
  2. Step 2: Convert to fraction form
    12,715,833.38/17,547,315.90 = 7,209,578.66/x
  3. Step 3: Cross multiply
    12,715,833.38x = 17,547,315.90 × 7,209,578.66
  4. Step 4: Simplify right side
    12,715,833.38x = 126,508,754,252,918.69
  5. Step 5: Solve for x
    x = 126,508,754,252,918.69/12,715,833.38
  6. Step 6: Final answer
    x = 9,948,915.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.