Home / 156,008,979.80-234,013,469.70-75,387,411.80

Finding the Fourth Proportional to 156,008,979.80, 234,013,469.70 and 75,387,411.80

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Solution

The fourth proportional to 156,008,979.80, 234,013,469.70 and 75,387,411.80 is: 113,081,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,008,979.80 : 234,013,469.70 = 75,387,411.80 : x
  2. Step 2: Convert to fraction form
    156,008,979.80/234,013,469.70 = 75,387,411.80/x
  3. Step 3: Cross multiply
    156,008,979.80x = 234,013,469.70 × 75,387,411.80
  4. Step 4: Simplify right side
    156,008,979.80x = 17,641,669,807,020,720
  5. Step 5: Solve for x
    x = 17,641,669,807,020,720/156,008,979.80
  6. Step 6: Final answer
    x = 113,081,117.70

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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.