Home / 128,286,490.98-192,429,732.75-59,178,847.80

Finding the Fourth Proportional to 128,286,490.98, 192,429,732.75 and 59,178,847.80

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Solution

The fourth proportional to 128,286,490.98, 192,429,732.75 and 59,178,847.80 is: 88,768,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,286,490.98 : 192,429,732.75 = 59,178,847.80 : x
  2. Step 2: Convert to fraction form
    128,286,490.98/192,429,732.75 = 59,178,847.80/x
  3. Step 3: Cross multiply
    128,286,490.98x = 192,429,732.75 × 59,178,847.80
  4. Step 4: Simplify right side
    128,286,490.98x = 11,387,769,866,606,924
  5. Step 5: Solve for x
    x = 11,387,769,866,606,924/128,286,490.98
  6. Step 6: Final answer
    x = 88,768,269.98

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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.