Home / 423,421,282.91-635,061,478.64-128,246,223.65

Finding the Fourth Proportional to 423,421,282.91, 635,061,478.64 and 128,246,223.65

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Solution

The fourth proportional to 423,421,282.91, 635,061,478.64 and 128,246,223.65 is: 192,347,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,421,282.91 : 635,061,478.64 = 128,246,223.65 : x
  2. Step 2: Convert to fraction form
    423,421,282.91/635,061,478.64 = 128,246,223.65/x
  3. Step 3: Cross multiply
    423,421,282.91x = 635,061,478.64 × 128,246,223.65
  4. Step 4: Simplify right side
    423,421,282.91x = 81,444,236,417,348,592
  5. Step 5: Solve for x
    x = 81,444,236,417,348,592/423,421,282.91
  6. Step 6: Final answer
    x = 192,347,998.80

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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.