Home / 423,421,277.42-635,061,470.41-128,246,218.14

Finding the Fourth Proportional to 423,421,277.42, 635,061,470.41 and 128,246,218.14

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Solution

The fourth proportional to 423,421,277.42, 635,061,470.41 and 128,246,218.14 is: 192,347,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,421,277.42 : 635,061,470.41 = 128,246,218.14 : x
  2. Step 2: Convert to fraction form
    423,421,277.42/635,061,470.41 = 128,246,218.14/x
  3. Step 3: Cross multiply
    423,421,277.42x = 635,061,470.41 × 128,246,218.14
  4. Step 4: Simplify right side
    423,421,277.42x = 81,444,231,865,868,784
  5. Step 5: Solve for x
    x = 81,444,231,865,868,784/423,421,277.42
  6. Step 6: Final answer
    x = 192,347,990.55

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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.