Home / 137,239,534.90-206,018,734.65-82,713,688.30

Finding the Fourth Proportional to 137,239,534.90, 206,018,734.65 and 82,713,688.30

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Solution

The fourth proportional to 137,239,534.90, 206,018,734.65 and 82,713,688.30 is: 124,166,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,239,534.90 : 206,018,734.65 = 82,713,688.30 : x
  2. Step 2: Convert to fraction form
    137,239,534.90/206,018,734.65 = 82,713,688.30/x
  3. Step 3: Cross multiply
    137,239,534.90x = 206,018,734.65 × 82,713,688.30
  4. Step 4: Simplify right side
    137,239,534.90x = 17,040,569,401,800,510
  5. Step 5: Solve for x
    x = 17,040,569,401,800,510/137,239,534.90
  6. Step 6: Final answer
    x = 124,166,621.62

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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.