Home / 39,192,376.11-54,088,925.32-21,554,386.80

Finding the Fourth Proportional to 39,192,376.11, 54,088,925.32 and 21,554,386.80

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Solution

The fourth proportional to 39,192,376.11, 54,088,925.32 and 21,554,386.80 is: 29,746,949.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,192,376.11 : 54,088,925.32 = 21,554,386.80 : x
  2. Step 2: Convert to fraction form
    39,192,376.11/54,088,925.32 = 21,554,386.80/x
  3. Step 3: Cross multiply
    39,192,376.11x = 54,088,925.32 × 21,554,386.80
  4. Step 4: Simplify right side
    39,192,376.11x = 1,165,853,617,565,377.25
  5. Step 5: Solve for x
    x = 1,165,853,617,565,377.25/39,192,376.11
  6. Step 6: Final answer
    x = 29,746,949.11

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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.