Home / 82,633,108.80-123,996,902.40-31,551,787.20

Finding the Fourth Proportional to 82,633,108.80, 123,996,902.40 and 31,551,787.20

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Solution

The fourth proportional to 82,633,108.80, 123,996,902.40 and 31,551,787.20 is: 47,345,718.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,633,108.80 : 123,996,902.40 = 31,551,787.20 : x
  2. Step 2: Convert to fraction form
    82,633,108.80/123,996,902.40 = 31,551,787.20/x
  3. Step 3: Cross multiply
    82,633,108.80x = 123,996,902.40 × 31,551,787.20
  4. Step 4: Simplify right side
    82,633,108.80x = 3,912,323,877,983,969.50
  5. Step 5: Solve for x
    x = 3,912,323,877,983,969.50/82,633,108.80
  6. Step 6: Final answer
    x = 47,345,718.14

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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.