Home / 128,286,487.98-192,429,728.25-59,178,844.80

Finding the Fourth Proportional to 128,286,487.98, 192,429,728.25 and 59,178,844.80

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Solution

The fourth proportional to 128,286,487.98, 192,429,728.25 and 59,178,844.80 is: 88,768,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,286,487.98 : 192,429,728.25 = 59,178,844.80 : x
  2. Step 2: Convert to fraction form
    128,286,487.98/192,429,728.25 = 59,178,844.80/x
  3. Step 3: Cross multiply
    128,286,487.98x = 192,429,728.25 × 59,178,844.80
  4. Step 4: Simplify right side
    128,286,487.98x = 11,387,769,023,012,926
  5. Step 5: Solve for x
    x = 11,387,769,023,012,926/128,286,487.98
  6. Step 6: Final answer
    x = 88,768,265.48

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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.