Home / 15,239,117.01-21,029,995.71-8,712,883.12

Finding the Fourth Proportional to 15,239,117.01, 21,029,995.71 and 8,712,883.12

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Solution

The fourth proportional to 15,239,117.01, 21,029,995.71 and 8,712,883.12 is: 12,023,786.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,239,117.01 : 21,029,995.71 = 8,712,883.12 : x
  2. Step 2: Convert to fraction form
    15,239,117.01/21,029,995.71 = 8,712,883.12/x
  3. Step 3: Cross multiply
    15,239,117.01x = 21,029,995.71 × 8,712,883.12
  4. Step 4: Simplify right side
    15,239,117.01x = 183,231,894,635,331.41
  5. Step 5: Solve for x
    x = 183,231,894,635,331.41/15,239,117.01
  6. Step 6: Final answer
    x = 12,023,786.85

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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.