Home / 425,304,842.40-638,098,981.20-379,587,794.40

Finding the Fourth Proportional to 425,304,842.40, 638,098,981.20 and 379,587,794.40

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Solution

The fourth proportional to 425,304,842.40, 638,098,981.20 and 379,587,794.40 is: 569,508,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,304,842.40 : 638,098,981.20 = 379,587,794.40 : x
  2. Step 2: Convert to fraction form
    425,304,842.40/638,098,981.20 = 379,587,794.40/x
  3. Step 3: Cross multiply
    425,304,842.40x = 638,098,981.20 × 379,587,794.40
  4. Step 4: Simplify right side
    425,304,842.40x = 242,214,584,882,595,072
  5. Step 5: Solve for x
    x = 242,214,584,882,595,072/425,304,842.40
  6. Step 6: Final answer
    x = 569,508,175.63

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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.