Home / 688,305,816.94-1,031,723,546.86-392,564,214.85

Finding the Fourth Proportional to 688,305,816.94, 1,031,723,546.86 and 392,564,214.85

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Solution

The fourth proportional to 688,305,816.94, 1,031,723,546.86 and 392,564,214.85 is: 588,427,024.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,305,816.94 : 1,031,723,546.86 = 392,564,214.85 : x
  2. Step 2: Convert to fraction form
    688,305,816.94/1,031,723,546.86 = 392,564,214.85/x
  3. Step 3: Cross multiply
    688,305,816.94x = 1,031,723,546.86 × 392,564,214.85
  4. Step 4: Simplify right side
    688,305,816.94x = 405,017,744,111,792,384
  5. Step 5: Solve for x
    x = 405,017,744,111,792,384/688,305,816.94
  6. Step 6: Final answer
    x = 588,427,024.94

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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.