Home / 478,517,795.64-717,904,288.44-171,812,565.72

Finding the Fourth Proportional to 478,517,795.64, 717,904,288.44 and 171,812,565.72

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Solution

The fourth proportional to 478,517,795.64, 717,904,288.44 and 171,812,565.72 is: 257,764,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,517,795.64 : 717,904,288.44 = 171,812,565.72 : x
  2. Step 2: Convert to fraction form
    478,517,795.64/717,904,288.44 = 171,812,565.72/x
  3. Step 3: Cross multiply
    478,517,795.64x = 717,904,288.44 × 171,812,565.72
  4. Step 4: Simplify right side
    478,517,795.64x = 123,344,977,738,267,344
  5. Step 5: Solve for x
    x = 123,344,977,738,267,344/478,517,795.64
  6. Step 6: Final answer
    x = 257,764,661.76

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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.