Home / 82,186,305.20-123,043,528.20-79,827,009.20

Finding the Fourth Proportional to 82,186,305.20, 123,043,528.20 and 79,827,009.20

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Solution

The fourth proportional to 82,186,305.20, 123,043,528.20 and 79,827,009.20 is: 119,511,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,186,305.20 : 123,043,528.20 = 79,827,009.20 : x
  2. Step 2: Convert to fraction form
    82,186,305.20/123,043,528.20 = 79,827,009.20/x
  3. Step 3: Cross multiply
    82,186,305.20x = 123,043,528.20 × 79,827,009.20
  4. Step 4: Simplify right side
    82,186,305.20x = 9,822,196,857,621,860
  5. Step 5: Solve for x
    x = 9,822,196,857,621,860/82,186,305.20
  6. Step 6: Final answer
    x = 119,511,356.96

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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.