Home / 485,116,880.70-727,675,321.05-178,345,515.90

Finding the Fourth Proportional to 485,116,880.70, 727,675,321.05 and 178,345,515.90

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Solution

The fourth proportional to 485,116,880.70, 727,675,321.05 and 178,345,515.90 is: 267,518,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,116,880.70 : 727,675,321.05 = 178,345,515.90 : x
  2. Step 2: Convert to fraction form
    485,116,880.70/727,675,321.05 = 178,345,515.90/x
  3. Step 3: Cross multiply
    485,116,880.70x = 727,675,321.05 × 178,345,515.90
  4. Step 4: Simplify right side
    485,116,880.70x = 129,777,630,540,360,368
  5. Step 5: Solve for x
    x = 129,777,630,540,360,368/485,116,880.70
  6. Step 6: Final answer
    x = 267,518,273.85

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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.