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Finding the Fourth Proportional to 423,643,670.64, 635,471,900.10 and 161,342,744.40

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Solution

The fourth proportional to 423,643,670.64, 635,471,900.10 and 161,342,744.40 is: 242,016,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,643,670.64 : 635,471,900.10 = 161,342,744.40 : x
  2. Step 2: Convert to fraction form
    423,643,670.64/635,471,900.10 = 161,342,744.40/x
  3. Step 3: Cross multiply
    423,643,670.64x = 635,471,900.10 × 161,342,744.40
  4. Step 4: Simplify right side
    423,643,670.64x = 102,528,780,351,216,640
  5. Step 5: Solve for x
    x = 102,528,780,351,216,640/423,643,670.64
  6. Step 6: Final answer
    x = 242,016,551.78

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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.