Home / 137,306,006.40-205,959,009.60-82,780,159.80

Finding the Fourth Proportional to 137,306,006.40, 205,959,009.60 and 82,780,159.80

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Solution

The fourth proportional to 137,306,006.40, 205,959,009.60 and 82,780,159.80 is: 124,170,239.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,306,006.40 : 205,959,009.60 = 82,780,159.80 : x
  2. Step 2: Convert to fraction form
    137,306,006.40/205,959,009.60 = 82,780,159.80/x
  3. Step 3: Cross multiply
    137,306,006.40x = 205,959,009.60 × 82,780,159.80
  4. Step 4: Simplify right side
    137,306,006.40x = 17,049,319,726,937,732
  5. Step 5: Solve for x
    x = 17,049,319,726,937,732/137,306,006.40
  6. Step 6: Final answer
    x = 124,170,239.70

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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.