Home / 551,427,918.30-827,141,877.45-509,337,791.10

Finding the Fourth Proportional to 551,427,918.30, 827,141,877.45 and 509,337,791.10

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Solution

The fourth proportional to 551,427,918.30, 827,141,877.45 and 509,337,791.10 is: 764,006,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,427,918.30 : 827,141,877.45 = 509,337,791.10 : x
  2. Step 2: Convert to fraction form
    551,427,918.30/827,141,877.45 = 509,337,791.10/x
  3. Step 3: Cross multiply
    551,427,918.30x = 827,141,877.45 × 509,337,791.10
  4. Step 4: Simplify right side
    551,427,918.30x = 421,294,616,786,689,920
  5. Step 5: Solve for x
    x = 421,294,616,786,689,920/551,427,918.30
  6. Step 6: Final answer
    x = 764,006,686.65

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Double scale
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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.