Home / 126,181,821.60-189,272,732.40-108,863,114.40

Finding the Fourth Proportional to 126,181,821.60, 189,272,732.40 and 108,863,114.40

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Solution

The fourth proportional to 126,181,821.60, 189,272,732.40 and 108,863,114.40 is: 163,294,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,181,821.60 : 189,272,732.40 = 108,863,114.40 : x
  2. Step 2: Convert to fraction form
    126,181,821.60/189,272,732.40 = 108,863,114.40/x
  3. Step 3: Cross multiply
    126,181,821.60x = 189,272,732.40 × 108,863,114.40
  4. Step 4: Simplify right side
    126,181,821.60x = 20,604,819,120,061,788
  5. Step 5: Solve for x
    x = 20,604,819,120,061,788/126,181,821.60
  6. Step 6: Final answer
    x = 163,294,671.60

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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.