Home / 72,082,207.72-99,475,932.90-39,487,162.60

Finding the Fourth Proportional to 72,082,207.72, 99,475,932.90 and 39,487,162.60

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Solution

The fourth proportional to 72,082,207.72, 99,475,932.90 and 39,487,162.60 is: 54,493,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,082,207.72 : 99,475,932.90 = 39,487,162.60 : x
  2. Step 2: Convert to fraction form
    72,082,207.72/99,475,932.90 = 39,487,162.60/x
  3. Step 3: Cross multiply
    72,082,207.72x = 99,475,932.90 × 39,487,162.60
  4. Step 4: Simplify right side
    72,082,207.72x = 3,928,022,337,208,990
  5. Step 5: Solve for x
    x = 3,928,022,337,208,990/72,082,207.72
  6. Step 6: Final answer
    x = 54,493,646.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.