Home / 124,677,796.80-187,016,695.20-78,761,294.40

Finding the Fourth Proportional to 124,677,796.80, 187,016,695.20 and 78,761,294.40

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Solution

The fourth proportional to 124,677,796.80, 187,016,695.20 and 78,761,294.40 is: 118,141,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,677,796.80 : 187,016,695.20 = 78,761,294.40 : x
  2. Step 2: Convert to fraction form
    124,677,796.80/187,016,695.20 = 78,761,294.40/x
  3. Step 3: Cross multiply
    124,677,796.80x = 187,016,695.20 × 78,761,294.40
  4. Step 4: Simplify right side
    124,677,796.80x = 14,729,676,988,362,268
  5. Step 5: Solve for x
    x = 14,729,676,988,362,268/124,677,796.80
  6. Step 6: Final answer
    x = 118,141,941.60

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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.