Home / 391,920,152.08-587,892,960.08-115,548,191.20

Finding the Fourth Proportional to 391,920,152.08, 587,892,960.08 and 115,548,191.20

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Solution

The fourth proportional to 391,920,152.08, 587,892,960.08 and 115,548,191.20 is: 173,326,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,920,152.08 : 587,892,960.08 = 115,548,191.20 : x
  2. Step 2: Convert to fraction form
    391,920,152.08/587,892,960.08 = 115,548,191.20/x
  3. Step 3: Cross multiply
    391,920,152.08x = 587,892,960.08 × 115,548,191.20
  4. Step 4: Simplify right side
    391,920,152.08x = 67,929,968,156,457,816
  5. Step 5: Solve for x
    x = 67,929,968,156,457,816/391,920,152.08
  6. Step 6: Final answer
    x = 173,326,040.51

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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.