Home / 126,016,656.80-189,024,985.20-74,148,015.20

Finding the Fourth Proportional to 126,016,656.80, 189,024,985.20 and 74,148,015.20

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Solution

The fourth proportional to 126,016,656.80, 189,024,985.20 and 74,148,015.20 is: 111,222,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,016,656.80 : 189,024,985.20 = 74,148,015.20 : x
  2. Step 2: Convert to fraction form
    126,016,656.80/189,024,985.20 = 74,148,015.20/x
  3. Step 3: Cross multiply
    126,016,656.80x = 189,024,985.20 × 74,148,015.20
  4. Step 4: Simplify right side
    126,016,656.80x = 14,015,827,475,789,374
  5. Step 5: Solve for x
    x = 14,015,827,475,789,374/126,016,656.80
  6. Step 6: Final answer
    x = 111,222,022.80

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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.