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Finding the Fourth Proportional to 262,440,473.70, 393,660,710.55 and 80,664,032.10

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Solution

The fourth proportional to 262,440,473.70, 393,660,710.55 and 80,664,032.10 is: 120,996,048.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,440,473.70 : 393,660,710.55 = 80,664,032.10 : x
  2. Step 2: Convert to fraction form
    262,440,473.70/393,660,710.55 = 80,664,032.10/x
  3. Step 3: Cross multiply
    262,440,473.70x = 393,660,710.55 × 80,664,032.10
  4. Step 4: Simplify right side
    262,440,473.70x = 31,754,260,192,314,008
  5. Step 5: Solve for x
    x = 31,754,260,192,314,008/262,440,473.70
  6. Step 6: Final answer
    x = 120,996,048.15

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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.