Home / 387,086,847.40-579,834,008.70-266,054,962.60

Finding the Fourth Proportional to 387,086,847.40, 579,834,008.70 and 266,054,962.60

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Solution

The fourth proportional to 387,086,847.40, 579,834,008.70 and 266,054,962.60 is: 398,535,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,086,847.40 : 579,834,008.70 = 266,054,962.60 : x
  2. Step 2: Convert to fraction form
    387,086,847.40/579,834,008.70 = 266,054,962.60/x
  3. Step 3: Cross multiply
    387,086,847.40x = 579,834,008.70 × 266,054,962.60
  4. Step 4: Simplify right side
    387,086,847.40x = 154,267,715,498,886,592
  5. Step 5: Solve for x
    x = 154,267,715,498,886,592/387,086,847.40
  6. Step 6: Final answer
    x = 398,535,151.83

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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.