Home / 391,450,612.20-587,175,918.30-262,456,103.40

Finding the Fourth Proportional to 391,450,612.20, 587,175,918.30 and 262,456,103.40

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Solution

The fourth proportional to 391,450,612.20, 587,175,918.30 and 262,456,103.40 is: 393,684,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,450,612.20 : 587,175,918.30 = 262,456,103.40 : x
  2. Step 2: Convert to fraction form
    391,450,612.20/587,175,918.30 = 262,456,103.40/x
  3. Step 3: Cross multiply
    391,450,612.20x = 587,175,918.30 × 262,456,103.40
  4. Step 4: Simplify right side
    391,450,612.20x = 154,107,903,527,334,752
  5. Step 5: Solve for x
    x = 154,107,903,527,334,752/391,450,612.20
  6. Step 6: Final answer
    x = 393,684,155.10

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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.