Home / 521,108,380.86-781,687,710.18-171,346,704.69

Finding the Fourth Proportional to 521,108,380.86, 781,687,710.18 and 171,346,704.69

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Solution

The fourth proportional to 521,108,380.86, 781,687,710.18 and 171,346,704.69 is: 257,028,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108,380.86 : 781,687,710.18 = 171,346,704.69 : x
  2. Step 2: Convert to fraction form
    521,108,380.86/781,687,710.18 = 171,346,704.69/x
  3. Step 3: Cross multiply
    521,108,380.86x = 781,687,710.18 × 171,346,704.69
  4. Step 4: Simplify right side
    521,108,380.86x = 133,939,613,236,014,752
  5. Step 5: Solve for x
    x = 133,939,613,236,014,752/521,108,380.86
  6. Step 6: Final answer
    x = 257,028,323.00

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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.