Home / 409,538,572.80-614,307,859.20-136,873,910.40

Finding the Fourth Proportional to 409,538,572.80, 614,307,859.20 and 136,873,910.40

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Solution

The fourth proportional to 409,538,572.80, 614,307,859.20 and 136,873,910.40 is: 205,310,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,538,572.80 : 614,307,859.20 = 136,873,910.40 : x
  2. Step 2: Convert to fraction form
    409,538,572.80/614,307,859.20 = 136,873,910.40/x
  3. Step 3: Cross multiply
    409,538,572.80x = 614,307,859.20 × 136,873,910.40
  4. Step 4: Simplify right side
    409,538,572.80x = 84,082,718,878,156,624
  5. Step 5: Solve for x
    x = 84,082,718,878,156,624/409,538,572.80
  6. Step 6: Final answer
    x = 205,310,865.60

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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.