Home / 28,554,947.22-39,406,285.08-15,502,195.80

Finding the Fourth Proportional to 28,554,947.22, 39,406,285.08 and 15,502,195.80

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Solution

The fourth proportional to 28,554,947.22, 39,406,285.08 and 15,502,195.80 is: 21,393,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,554,947.22 : 39,406,285.08 = 15,502,195.80 : x
  2. Step 2: Convert to fraction form
    28,554,947.22/39,406,285.08 = 15,502,195.80/x
  3. Step 3: Cross multiply
    28,554,947.22x = 39,406,285.08 × 15,502,195.80
  4. Step 4: Simplify right side
    28,554,947.22x = 610,883,947,060,778.62
  5. Step 5: Solve for x
    x = 610,883,947,060,778.62/28,554,947.22
  6. Step 6: Final answer
    x = 21,393,278.80

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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.