Home / 262,286,194.72-393,402,331.15-87,390,338.62

Finding the Fourth Proportional to 262,286,194.72, 393,402,331.15 and 87,390,338.62

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Solution

The fourth proportional to 262,286,194.72, 393,402,331.15 and 87,390,338.62 is: 131,076,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,286,194.72 : 393,402,331.15 = 87,390,338.62 : x
  2. Step 2: Convert to fraction form
    262,286,194.72/393,402,331.15 = 87,390,338.62/x
  3. Step 3: Cross multiply
    262,286,194.72x = 393,402,331.15 × 87,390,338.62
  4. Step 4: Simplify right side
    262,286,194.72x = 34,379,562,933,123,532
  5. Step 5: Solve for x
    x = 34,379,562,933,123,532/262,286,194.72
  6. Step 6: Final answer
    x = 131,076,524.90

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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.