Home / 126,195,411.60-189,218,467.80-65,729,235.60

Finding the Fourth Proportional to 126,195,411.60, 189,218,467.80 and 65,729,235.60

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Solution

The fourth proportional to 126,195,411.60, 189,218,467.80 and 65,729,235.60 is: 98,554,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,195,411.60 : 189,218,467.80 = 65,729,235.60 : x
  2. Step 2: Convert to fraction form
    126,195,411.60/189,218,467.80 = 65,729,235.60/x
  3. Step 3: Cross multiply
    126,195,411.60x = 189,218,467.80 × 65,729,235.60
  4. Step 4: Simplify right side
    126,195,411.60x = 12,437,185,249,897,214
  5. Step 5: Solve for x
    x = 12,437,185,249,897,214/126,195,411.60
  6. Step 6: Final answer
    x = 98,554,971.95

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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.