Home / 1,187,190,649.60-1,780,785,974.40-996,722,195.20

Finding the Fourth Proportional to 1,187,190,649.60, 1,780,785,974.40 and 996,722,195.20

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Solution

The fourth proportional to 1,187,190,649.60, 1,780,785,974.40 and 996,722,195.20 is: 1,495,083,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,190,649.60 : 1,780,785,974.40 = 996,722,195.20 : x
  2. Step 2: Convert to fraction form
    1,187,190,649.60/1,780,785,974.40 = 996,722,195.20/x
  3. Step 3: Cross multiply
    1,187,190,649.60x = 1,780,785,974.40 × 996,722,195.20
  4. Step 4: Simplify right side
    1,187,190,649.60x = 1,774,948,905,585,339,136
  5. Step 5: Solve for x
    x = 1,774,948,905,585,339,136/1,187,190,649.60
  6. Step 6: Final answer
    x = 1,495,083,292.80

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Double scale
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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.