Home / 323,517,506.40-485,276,259.60-185,767,999.20

Finding the Fourth Proportional to 323,517,506.40, 485,276,259.60 and 185,767,999.20

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Solution

The fourth proportional to 323,517,506.40, 485,276,259.60 and 185,767,999.20 is: 278,651,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,517,506.40 : 485,276,259.60 = 185,767,999.20 : x
  2. Step 2: Convert to fraction form
    323,517,506.40/485,276,259.60 = 185,767,999.20/x
  3. Step 3: Cross multiply
    323,517,506.40x = 485,276,259.60 × 185,767,999.20
  4. Step 4: Simplify right side
    323,517,506.40x = 90,148,799,805,151,792
  5. Step 5: Solve for x
    x = 90,148,799,805,151,792/323,517,506.40
  6. Step 6: Final answer
    x = 278,651,998.80

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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.