Home / 31,678,032.72-47,539,711.29-13,494,964.80

Finding the Fourth Proportional to 31,678,032.72, 47,539,711.29 and 13,494,964.80

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Solution

The fourth proportional to 31,678,032.72, 47,539,711.29 and 13,494,964.80 is: 20,252,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,678,032.72 : 47,539,711.29 = 13,494,964.80 : x
  2. Step 2: Convert to fraction form
    31,678,032.72/47,539,711.29 = 13,494,964.80/x
  3. Step 3: Cross multiply
    31,678,032.72x = 47,539,711.29 × 13,494,964.80
  4. Step 4: Simplify right side
    31,678,032.72x = 641,546,730,460,712.62
  5. Step 5: Solve for x
    x = 641,546,730,460,712.62/31,678,032.72
  6. Step 6: Final answer
    x = 20,252,101.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.