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Finding the Fourth Proportional to 279,462,658.91, 418,656,724.47 and 156,267,325.06

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Solution

The fourth proportional to 279,462,658.91, 418,656,724.47 and 156,267,325.06 is: 234,100,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,462,658.91 : 418,656,724.47 = 156,267,325.06 : x
  2. Step 2: Convert to fraction form
    279,462,658.91/418,656,724.47 = 156,267,325.06/x
  3. Step 3: Cross multiply
    279,462,658.91x = 418,656,724.47 × 156,267,325.06
  4. Step 4: Simplify right side
    279,462,658.91x = 65,422,366,450,261,712
  5. Step 5: Solve for x
    x = 65,422,366,450,261,712/279,462,658.91
  6. Step 6: Final answer
    x = 234,100,565.37

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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.