Home / 38,438,192.80-53,044,705.38-21,034,543.78

Finding the Fourth Proportional to 38,438,192.80, 53,044,705.38 and 21,034,543.78

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Solution

The fourth proportional to 38,438,192.80, 53,044,705.38 and 21,034,543.78 is: 29,027,670.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438,192.80 : 53,044,705.38 = 21,034,543.78 : x
  2. Step 2: Convert to fraction form
    38,438,192.80/53,044,705.38 = 21,034,543.78/x
  3. Step 3: Cross multiply
    38,438,192.80x = 53,044,705.38 × 21,034,543.78
  4. Step 4: Simplify right side
    38,438,192.80x = 1,115,771,177,612,811.62
  5. Step 5: Solve for x
    x = 1,115,771,177,612,811.62/38,438,192.80
  6. Step 6: Final answer
    x = 29,027,670.04

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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.