Home / 12,781,900.29-17,639,457.65-7,559,385.30

Finding the Fourth Proportional to 12,781,900.29, 17,639,457.65 and 7,559,385.30

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Solution

The fourth proportional to 12,781,900.29, 17,639,457.65 and 7,559,385.30 is: 10,432,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,900.29 : 17,639,457.65 = 7,559,385.30 : x
  2. Step 2: Convert to fraction form
    12,781,900.29/17,639,457.65 = 7,559,385.30/x
  3. Step 3: Cross multiply
    12,781,900.29x = 17,639,457.65 × 7,559,385.30
  4. Step 4: Simplify right side
    12,781,900.29x = 133,343,456,821,585.61
  5. Step 5: Solve for x
    x = 133,343,456,821,585.61/12,781,900.29
  6. Step 6: Final answer
    x = 10,432,209.12

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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.