Home / 39,187,291.71-54,071,925.83-21,781,270.35

Finding the Fourth Proportional to 39,187,291.71, 54,071,925.83 and 21,781,270.35

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Solution

The fourth proportional to 39,187,291.71, 54,071,925.83 and 21,781,270.35 is: 30,054,519.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187,291.71 : 54,071,925.83 = 21,781,270.35 : x
  2. Step 2: Convert to fraction form
    39,187,291.71/54,071,925.83 = 21,781,270.35/x
  3. Step 3: Cross multiply
    39,187,291.71x = 54,071,925.83 × 21,781,270.35
  4. Step 4: Simplify right side
    39,187,291.71x = 1,177,755,234,739,472
  5. Step 5: Solve for x
    x = 1,177,755,234,739,472/39,187,291.71
  6. Step 6: Final answer
    x = 30,054,519.81

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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.