Home / 89,687,021.80-123,768,089.76-48,433,911.88

Finding the Fourth Proportional to 89,687,021.80, 123,768,089.76 and 48,433,911.88

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Solution

The fourth proportional to 89,687,021.80, 123,768,089.76 and 48,433,911.88 is: 66,838,798.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,687,021.80 : 123,768,089.76 = 48,433,911.88 : x
  2. Step 2: Convert to fraction form
    89,687,021.80/123,768,089.76 = 48,433,911.88/x
  3. Step 3: Cross multiply
    89,687,021.80x = 123,768,089.76 × 48,433,911.88
  4. Step 4: Simplify right side
    89,687,021.80x = 5,994,572,752,991,771
  5. Step 5: Solve for x
    x = 5,994,572,752,991,771/89,687,021.80
  6. Step 6: Final answer
    x = 66,838,798.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.