Home / 1,247,802,331.58-1,722,021,025.77-690,885,427.85

Finding the Fourth Proportional to 1,247,802,331.58, 1,722,021,025.77 and 690,885,427.85

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Solution

The fourth proportional to 1,247,802,331.58, 1,722,021,025.77 and 690,885,427.85 is: 953,451,683.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,802,331.58 : 1,722,021,025.77 = 690,885,427.85 : x
  2. Step 2: Convert to fraction form
    1,247,802,331.58/1,722,021,025.77 = 690,885,427.85/x
  3. Step 3: Cross multiply
    1,247,802,331.58x = 1,722,021,025.77 × 690,885,427.85
  4. Step 4: Simplify right side
    1,247,802,331.58x = 1,189,719,233,153,649,664
  5. Step 5: Solve for x
    x = 1,189,719,233,153,649,664/1,247,802,331.58
  6. Step 6: Final answer
    x = 953,451,683.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.