Home / 517,503,254.40-775,995,937.92-172,336,567.68

Finding the Fourth Proportional to 517,503,254.40, 775,995,937.92 and 172,336,567.68

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Solution

The fourth proportional to 517,503,254.40, 775,995,937.92 and 172,336,567.68 is: 258,418,619.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,503,254.40 : 775,995,937.92 = 172,336,567.68 : x
  2. Step 2: Convert to fraction form
    517,503,254.40/775,995,937.92 = 172,336,567.68/x
  3. Step 3: Cross multiply
    517,503,254.40x = 775,995,937.92 × 172,336,567.68
  4. Step 4: Simplify right side
    517,503,254.40x = 133,732,476,474,755,152
  5. Step 5: Solve for x
    x = 133,732,476,474,755,152/517,503,254.40
  6. Step 6: Final answer
    x = 258,418,619.28

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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.