Home / 242,379,979.23-363,621,037.05-78,604,965.63

Finding the Fourth Proportional to 242,379,979.23, 363,621,037.05 and 78,604,965.63

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Solution

The fourth proportional to 242,379,979.23, 363,621,037.05 and 78,604,965.63 is: 117,924,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,379,979.23 : 363,621,037.05 = 78,604,965.63 : x
  2. Step 2: Convert to fraction form
    242,379,979.23/363,621,037.05 = 78,604,965.63/x
  3. Step 3: Cross multiply
    242,379,979.23x = 363,621,037.05 × 78,604,965.63
  4. Step 4: Simplify right side
    242,379,979.23x = 28,582,419,119,660,204
  5. Step 5: Solve for x
    x = 28,582,419,119,660,204/242,379,979.23
  6. Step 6: Final answer
    x = 117,924,010.10

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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.