Home / 646,792,001.90-970,188,002.85-323,559,233.90

Finding the Fourth Proportional to 646,792,001.90, 970,188,002.85 and 323,559,233.90

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Solution

The fourth proportional to 646,792,001.90, 970,188,002.85 and 323,559,233.90 is: 485,338,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,792,001.90 : 970,188,002.85 = 323,559,233.90 : x
  2. Step 2: Convert to fraction form
    646,792,001.90/970,188,002.85 = 323,559,233.90/x
  3. Step 3: Cross multiply
    646,792,001.90x = 970,188,002.85 × 323,559,233.90
  4. Step 4: Simplify right side
    646,792,001.90x = 313,913,286,941,116,992
  5. Step 5: Solve for x
    x = 313,913,286,941,116,992/646,792,001.90
  6. Step 6: Final answer
    x = 485,338,850.85

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Double scale
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Similar ratio
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1.5x scale

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.