Home / 15,391,836.42-21,231,479.58-10,164,892.74

Finding the Fourth Proportional to 15,391,836.42, 21,231,479.58 and 10,164,892.74

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Solution

The fourth proportional to 15,391,836.42, 21,231,479.58 and 10,164,892.74 is: 14,021,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,836.42 : 21,231,479.58 = 10,164,892.74 : x
  2. Step 2: Convert to fraction form
    15,391,836.42/21,231,479.58 = 10,164,892.74/x
  3. Step 3: Cross multiply
    15,391,836.42x = 21,231,479.58 × 10,164,892.74
  4. Step 4: Simplify right side
    15,391,836.42x = 215,815,712,642,200.25
  5. Step 5: Solve for x
    x = 215,815,712,642,200.25/15,391,836.42
  6. Step 6: Final answer
    x = 14,021,440.12

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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.