Home / 280,976,334.22-387,701,084.91-176,479,970.86

Finding the Fourth Proportional to 280,976,334.22, 387,701,084.91 and 176,479,970.86

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Solution

The fourth proportional to 280,976,334.22, 387,701,084.91 and 176,479,970.86 is: 243,513,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,976,334.22 : 387,701,084.91 = 176,479,970.86 : x
  2. Step 2: Convert to fraction form
    280,976,334.22/387,701,084.91 = 176,479,970.86/x
  3. Step 3: Cross multiply
    280,976,334.22x = 387,701,084.91 × 176,479,970.86
  4. Step 4: Simplify right side
    280,976,334.22x = 68,421,476,167,307,192
  5. Step 5: Solve for x
    x = 68,421,476,167,307,192/280,976,334.22
  6. Step 6: Final answer
    x = 243,513,306.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.