Home / 181,209,639.20-271,908,937.20-78,984,010.40

Finding the Fourth Proportional to 181,209,639.20, 271,908,937.20 and 78,984,010.40

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Solution

The fourth proportional to 181,209,639.20, 271,908,937.20 and 78,984,010.40 is: 118,517,195.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,209,639.20 : 271,908,937.20 = 78,984,010.40 : x
  2. Step 2: Convert to fraction form
    181,209,639.20/271,908,937.20 = 78,984,010.40/x
  3. Step 3: Cross multiply
    181,209,639.20x = 271,908,937.20 × 78,984,010.40
  4. Step 4: Simplify right side
    181,209,639.20x = 21,476,458,323,657,748
  5. Step 5: Solve for x
    x = 21,476,458,323,657,748/181,209,639.20
  6. Step 6: Final answer
    x = 118,517,195.99

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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.