Home / 817,101,117,492.90-1,225,656,257,811.20-272,548,120,822.55

Finding the Fourth Proportional to 817,101,117,492.90, 1,225,656,257,811.20 and 272,548,120,822.55

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Solution

The fourth proportional to 817,101,117,492.90, 1,225,656,257,811.20 and 272,548,120,822.55 is: 408,823,709,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,101,117,492.90 : 1,225,656,257,811.20 = 272,548,120,822.55 : x
  2. Step 2: Convert to fraction form
    817,101,117,492.90/1,225,656,257,811.20 = 272,548,120,822.55/x
  3. Step 3: Cross multiply
    817,101,117,492.90x = 1,225,656,257,811.20 × 272,548,120,822.55
  4. Step 4: Simplify right side
    817,101,117,492.90x = 334,050,309,840,841,419,522,048
  5. Step 5: Solve for x
    x = 334,050,309,840,841,419,522,048/817,101,117,492.90
  6. Step 6: Final answer
    x = 408,823,709,439.79

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Double scale
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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.