Home / 52,479,090.80-78,741,371.40-28,189,678.40

Finding the Fourth Proportional to 52,479,090.80, 78,741,371.40 and 28,189,678.40

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Solution

The fourth proportional to 52,479,090.80, 78,741,371.40 and 28,189,678.40 is: 42,296,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,479,090.80 : 78,741,371.40 = 28,189,678.40 : x
  2. Step 2: Convert to fraction form
    52,479,090.80/78,741,371.40 = 28,189,678.40/x
  3. Step 3: Cross multiply
    52,479,090.80x = 78,741,371.40 × 28,189,678.40
  4. Step 4: Simplify right side
    52,479,090.80x = 2,219,693,936,540,957.75
  5. Step 5: Solve for x
    x = 2,219,693,936,540,957.75/52,479,090.80
  6. Step 6: Final answer
    x = 42,296,730.04

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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.