Home / 15,642,560.38-21,588,966.86-8,674,787.49

Finding the Fourth Proportional to 15,642,560.38, 21,588,966.86 and 8,674,787.49

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Solution

The fourth proportional to 15,642,560.38, 21,588,966.86 and 8,674,787.49 is: 11,972,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,560.38 : 21,588,966.86 = 8,674,787.49 : x
  2. Step 2: Convert to fraction form
    15,642,560.38/21,588,966.86 = 8,674,787.49/x
  3. Step 3: Cross multiply
    15,642,560.38x = 21,588,966.86 × 8,674,787.49
  4. Step 4: Simplify right side
    15,642,560.38x = 187,279,699,531,207.72
  5. Step 5: Solve for x
    x = 187,279,699,531,207.72/15,642,560.38
  6. Step 6: Final answer
    x = 11,972,445.37

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1.5x scale

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.