Home / 39,187,290.45-54,071,924.10-21,781,269.10

Finding the Fourth Proportional to 39,187,290.45, 54,071,924.10 and 21,781,269.10

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Solution

The fourth proportional to 39,187,290.45, 54,071,924.10 and 21,781,269.10 is: 30,054,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,187,290.45 : 54,071,924.10 = 21,781,269.10 : x
  2. Step 2: Convert to fraction form
    39,187,290.45/54,071,924.10 = 21,781,269.10/x
  3. Step 3: Cross multiply
    39,187,290.45x = 54,071,924.10 × 21,781,269.10
  4. Step 4: Simplify right side
    39,187,290.45x = 1,177,755,129,685,305
  5. Step 5: Solve for x
    x = 1,177,755,129,685,305/39,187,290.45
  6. Step 6: Final answer
    x = 30,054,518.09

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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.