Home / 38,835,490.50-53,592,867.04-21,431,711.28

Finding the Fourth Proportional to 38,835,490.50, 53,592,867.04 and 21,431,711.28

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Solution

The fourth proportional to 38,835,490.50, 53,592,867.04 and 21,431,711.28 is: 29,575,700.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,835,490.50 : 53,592,867.04 = 21,431,711.28 : x
  2. Step 2: Convert to fraction form
    38,835,490.50/53,592,867.04 = 21,431,711.28/x
  3. Step 3: Cross multiply
    38,835,490.50x = 53,592,867.04 × 21,431,711.28
  4. Step 4: Simplify right side
    38,835,490.50x = 1,148,586,853,068,708.25
  5. Step 5: Solve for x
    x = 1,148,586,853,068,708.25/38,835,490.50
  6. Step 6: Final answer
    x = 29,575,700.94

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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.