Home / 522,218,500.48-783,161,561.10-172,399,434.36

Finding the Fourth Proportional to 522,218,500.48, 783,161,561.10 and 172,399,434.36

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Solution

The fourth proportional to 522,218,500.48, 783,161,561.10 and 172,399,434.36 is: 258,544,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,218,500.48 : 783,161,561.10 = 172,399,434.36 : x
  2. Step 2: Convert to fraction form
    522,218,500.48/783,161,561.10 = 172,399,434.36/x
  3. Step 3: Cross multiply
    522,218,500.48x = 783,161,561.10 × 172,399,434.36
  4. Step 4: Simplify right side
    522,218,500.48x = 135,016,610,146,134,592
  5. Step 5: Solve for x
    x = 135,016,610,146,134,592/522,218,500.48
  6. Step 6: Final answer
    x = 258,544,287.54

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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.