Home / 38,986,343.70-53,799,022.84-21,341,832.90

Finding the Fourth Proportional to 38,986,343.70, 53,799,022.84 and 21,341,832.90

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Solution

The fourth proportional to 38,986,343.70, 53,799,022.84 and 21,341,832.90 is: 29,450,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,986,343.70 : 53,799,022.84 = 21,341,832.90 : x
  2. Step 2: Convert to fraction form
    38,986,343.70/53,799,022.84 = 21,341,832.90/x
  3. Step 3: Cross multiply
    38,986,343.70x = 53,799,022.84 × 21,341,832.90
  4. Step 4: Simplify right side
    38,986,343.70x = 1,148,169,755,634,563.50
  5. Step 5: Solve for x
    x = 1,148,169,755,634,563.50/38,986,343.70
  6. Step 6: Final answer
    x = 29,450,562.60

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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.