Home / 80,986,276.80-121,479,415.20-74,750,702.40

Finding the Fourth Proportional to 80,986,276.80, 121,479,415.20 and 74,750,702.40

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Solution

The fourth proportional to 80,986,276.80, 121,479,415.20 and 74,750,702.40 is: 112,126,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,986,276.80 : 121,479,415.20 = 74,750,702.40 : x
  2. Step 2: Convert to fraction form
    80,986,276.80/121,479,415.20 = 74,750,702.40/x
  3. Step 3: Cross multiply
    80,986,276.80x = 121,479,415.20 × 74,750,702.40
  4. Step 4: Simplify right side
    80,986,276.80x = 9,080,671,613,341,238
  5. Step 5: Solve for x
    x = 9,080,671,613,341,238/80,986,276.80
  6. Step 6: Final answer
    x = 112,126,053.60

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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.