Home / 15,581,356.74-23,478,389.13-12,803,691.78

Finding the Fourth Proportional to 15,581,356.74, 23,478,389.13 and 12,803,691.78

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Solution

The fourth proportional to 15,581,356.74, 23,478,389.13 and 12,803,691.78 is: 19,292,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581,356.74 : 23,478,389.13 = 12,803,691.78 : x
  2. Step 2: Convert to fraction form
    15,581,356.74/23,478,389.13 = 12,803,691.78/x
  3. Step 3: Cross multiply
    15,581,356.74x = 23,478,389.13 × 12,803,691.78
  4. Step 4: Simplify right side
    15,581,356.74x = 300,610,057,959,436.19
  5. Step 5: Solve for x
    x = 300,610,057,959,436.19/15,581,356.74
  6. Step 6: Final answer
    x = 19,292,932.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.