Home / 137,676,056.40-206,514,084.60-76,454,053.20

Finding the Fourth Proportional to 137,676,056.40, 206,514,084.60 and 76,454,053.20

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Solution

The fourth proportional to 137,676,056.40, 206,514,084.60 and 76,454,053.20 is: 114,681,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,676,056.40 : 206,514,084.60 = 76,454,053.20 : x
  2. Step 2: Convert to fraction form
    137,676,056.40/206,514,084.60 = 76,454,053.20/x
  3. Step 3: Cross multiply
    137,676,056.40x = 206,514,084.60 × 76,454,053.20
  4. Step 4: Simplify right side
    137,676,056.40x = 15,788,838,810,557,700
  5. Step 5: Solve for x
    x = 15,788,838,810,557,700/137,676,056.40
  6. Step 6: Final answer
    x = 114,681,079.80

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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.