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Finding the Fourth Proportional to 403,560,471.80, 605,340,707.70 and 112,472,521.40

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Solution

The fourth proportional to 403,560,471.80, 605,340,707.70 and 112,472,521.40 is: 168,708,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,560,471.80 : 605,340,707.70 = 112,472,521.40 : x
  2. Step 2: Convert to fraction form
    403,560,471.80/605,340,707.70 = 112,472,521.40/x
  3. Step 3: Cross multiply
    403,560,471.80x = 605,340,707.70 × 112,472,521.40
  4. Step 4: Simplify right side
    403,560,471.80x = 68,084,195,701,079,400
  5. Step 5: Solve for x
    x = 68,084,195,701,079,400/403,560,471.80
  6. Step 6: Final answer
    x = 168,708,782.10

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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.