Home / 126,144,446.40-189,216,669.60-54,340,862.40

Finding the Fourth Proportional to 126,144,446.40, 189,216,669.60 and 54,340,862.40

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Solution

The fourth proportional to 126,144,446.40, 189,216,669.60 and 54,340,862.40 is: 81,511,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,144,446.40 : 189,216,669.60 = 54,340,862.40 : x
  2. Step 2: Convert to fraction form
    126,144,446.40/189,216,669.60 = 54,340,862.40/x
  3. Step 3: Cross multiply
    126,144,446.40x = 189,216,669.60 × 54,340,862.40
  4. Step 4: Simplify right side
    126,144,446.40x = 10,282,197,006,519,862
  5. Step 5: Solve for x
    x = 10,282,197,006,519,862/126,144,446.40
  6. Step 6: Final answer
    x = 81,511,293.60

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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.