Home / 83,038,658.20-124,557,987.30-39,897,458.80

Finding the Fourth Proportional to 83,038,658.20, 124,557,987.30 and 39,897,458.80

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Solution

The fourth proportional to 83,038,658.20, 124,557,987.30 and 39,897,458.80 is: 59,846,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,038,658.20 : 124,557,987.30 = 39,897,458.80 : x
  2. Step 2: Convert to fraction form
    83,038,658.20/124,557,987.30 = 39,897,458.80/x
  3. Step 3: Cross multiply
    83,038,658.20x = 124,557,987.30 × 39,897,458.80
  4. Step 4: Simplify right side
    83,038,658.20x = 4,969,547,166,512,673
  5. Step 5: Solve for x
    x = 4,969,547,166,512,673/83,038,658.20
  6. Step 6: Final answer
    x = 59,846,188.20

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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.