Home / 442,859,200.65-664,288,800.98-258,437,363.85

Finding the Fourth Proportional to 442,859,200.65, 664,288,800.98 and 258,437,363.85

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Solution

The fourth proportional to 442,859,200.65, 664,288,800.98 and 258,437,363.85 is: 387,656,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,859,200.65 : 664,288,800.98 = 258,437,363.85 : x
  2. Step 2: Convert to fraction form
    442,859,200.65/664,288,800.98 = 258,437,363.85/x
  3. Step 3: Cross multiply
    442,859,200.65x = 664,288,800.98 × 258,437,363.85
  4. Step 4: Simplify right side
    442,859,200.65x = 171,677,046,559,056,320
  5. Step 5: Solve for x
    x = 171,677,046,559,056,320/442,859,200.65
  6. Step 6: Final answer
    x = 387,656,045.78

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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.