Home / 21,335,029.68-31,989,585.16-8,365,642.06

Finding the Fourth Proportional to 21,335,029.68, 31,989,585.16 and 8,365,642.06

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Solution

The fourth proportional to 21,335,029.68, 31,989,585.16 and 8,365,642.06 is: 12,543,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,029.68 : 31,989,585.16 = 8,365,642.06 : x
  2. Step 2: Convert to fraction form
    21,335,029.68/31,989,585.16 = 8,365,642.06/x
  3. Step 3: Cross multiply
    21,335,029.68x = 31,989,585.16 × 8,365,642.06
  4. Step 4: Simplify right side
    21,335,029.68x = 267,613,418,894,671.69
  5. Step 5: Solve for x
    x = 267,613,418,894,671.69/21,335,029.68
  6. Step 6: Final answer
    x = 12,543,381.61

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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.