Home / 920,838,009.28-1,382,239,851.52-396,466,617.92

Finding the Fourth Proportional to 920,838,009.28, 1,382,239,851.52 and 396,466,617.92

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Solution

The fourth proportional to 920,838,009.28, 1,382,239,851.52 and 396,466,617.92 is: 595,123,087.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,838,009.28 : 1,382,239,851.52 = 396,466,617.92 : x
  2. Step 2: Convert to fraction form
    920,838,009.28/1,382,239,851.52 = 396,466,617.92/x
  3. Step 3: Cross multiply
    920,838,009.28x = 1,382,239,851.52 × 396,466,617.92
  4. Step 4: Simplify right side
    920,838,009.28x = 548,011,959,086,377,408
  5. Step 5: Solve for x
    x = 548,011,959,086,377,408/920,838,009.28
  6. Step 6: Final answer
    x = 595,123,087.41

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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.