Home / 129,486,411.20-194,229,616.80-118,904,830.40

Finding the Fourth Proportional to 129,486,411.20, 194,229,616.80 and 118,904,830.40

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Solution

The fourth proportional to 129,486,411.20, 194,229,616.80 and 118,904,830.40 is: 178,357,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,486,411.20 : 194,229,616.80 = 118,904,830.40 : x
  2. Step 2: Convert to fraction form
    129,486,411.20/194,229,616.80 = 118,904,830.40/x
  3. Step 3: Cross multiply
    129,486,411.20x = 194,229,616.80 × 118,904,830.40
  4. Step 4: Simplify right side
    129,486,411.20x = 23,094,839,644,260,992
  5. Step 5: Solve for x
    x = 23,094,839,644,260,992/129,486,411.20
  6. Step 6: Final answer
    x = 178,357,245.60

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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.