Home / 664,227,287.20-997,364,864.76-561,940,509.88

Finding the Fourth Proportional to 664,227,287.20, 997,364,864.76 and 561,940,509.88

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Solution

The fourth proportional to 664,227,287.20, 997,364,864.76 and 561,940,509.88 is: 843,777,019.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,227,287.20 : 997,364,864.76 = 561,940,509.88 : x
  2. Step 2: Convert to fraction form
    664,227,287.20/997,364,864.76 = 561,940,509.88/x
  3. Step 3: Cross multiply
    664,227,287.20x = 997,364,864.76 × 561,940,509.88
  4. Step 4: Simplify right side
    664,227,287.20x = 560,459,720,639,631,616
  5. Step 5: Solve for x
    x = 560,459,720,639,631,616/664,227,287.20
  6. Step 6: Final answer
    x = 843,777,019.46

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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.