Home / 161,696,943.90-242,555,913.45-85,169,439.90

Finding the Fourth Proportional to 161,696,943.90, 242,555,913.45 and 85,169,439.90

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Solution

The fourth proportional to 161,696,943.90, 242,555,913.45 and 85,169,439.90 is: 127,759,689.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,696,943.90 : 242,555,913.45 = 85,169,439.90 : x
  2. Step 2: Convert to fraction form
    161,696,943.90/242,555,913.45 = 85,169,439.90/x
  3. Step 3: Cross multiply
    161,696,943.90x = 242,555,913.45 × 85,169,439.90
  4. Step 4: Simplify right side
    161,696,943.90x = 20,658,351,292,969,376
  5. Step 5: Solve for x
    x = 20,658,351,292,969,376/161,696,943.90
  6. Step 6: Final answer
    x = 127,759,689.17

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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.