Home / 149,420,689.04-206,201,267.05-82,439,643.78

Finding the Fourth Proportional to 149,420,689.04, 206,201,267.05 and 82,439,643.78

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Solution

The fourth proportional to 149,420,689.04, 206,201,267.05 and 82,439,643.78 is: 113,767,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,420,689.04 : 206,201,267.05 = 82,439,643.78 : x
  2. Step 2: Convert to fraction form
    149,420,689.04/206,201,267.05 = 82,439,643.78/x
  3. Step 3: Cross multiply
    149,420,689.04x = 206,201,267.05 × 82,439,643.78
  4. Step 4: Simplify right side
    149,420,689.04x = 16,999,159,002,534,714
  5. Step 5: Solve for x
    x = 16,999,159,002,534,714/149,420,689.04
  6. Step 6: Final answer
    x = 113,767,103.55

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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.