Home / 72,586,589.80-108,889,215.90-36,213,572.20

Finding the Fourth Proportional to 72,586,589.80, 108,889,215.90 and 36,213,572.20

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Solution

The fourth proportional to 72,586,589.80, 108,889,215.90 and 36,213,572.20 is: 54,325,013.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,586,589.80 : 108,889,215.90 = 36,213,572.20 : x
  2. Step 2: Convert to fraction form
    72,586,589.80/108,889,215.90 = 36,213,572.20/x
  3. Step 3: Cross multiply
    72,586,589.80x = 108,889,215.90 × 36,213,572.20
  4. Step 4: Simplify right side
    72,586,589.80x = 3,943,267,481,796,038.50
  5. Step 5: Solve for x
    x = 3,943,267,481,796,038.50/72,586,589.80
  6. Step 6: Final answer
    x = 54,325,013.65

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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.