Home / 258,984,200.10-388,476,300.15-257,472,545.70

Finding the Fourth Proportional to 258,984,200.10, 388,476,300.15 and 257,472,545.70

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Solution

The fourth proportional to 258,984,200.10, 388,476,300.15 and 257,472,545.70 is: 386,208,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,984,200.10 : 388,476,300.15 = 257,472,545.70 : x
  2. Step 2: Convert to fraction form
    258,984,200.10/388,476,300.15 = 257,472,545.70/x
  3. Step 3: Cross multiply
    258,984,200.10x = 388,476,300.15 × 257,472,545.70
  4. Step 4: Simplify right side
    258,984,200.10x = 100,021,981,943,737,776
  5. Step 5: Solve for x
    x = 100,021,981,943,737,776/258,984,200.10
  6. Step 6: Final answer
    x = 386,208,818.55

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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.