Home / 1,180,981,344.40-1,771,472,016.60-689,189,779.60

Finding the Fourth Proportional to 1,180,981,344.40, 1,771,472,016.60 and 689,189,779.60

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Solution

The fourth proportional to 1,180,981,344.40, 1,771,472,016.60 and 689,189,779.60 is: 1,033,784,669.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,981,344.40 : 1,771,472,016.60 = 689,189,779.60 : x
  2. Step 2: Convert to fraction form
    1,180,981,344.40/1,771,472,016.60 = 689,189,779.60/x
  3. Step 3: Cross multiply
    1,180,981,344.40x = 1,771,472,016.60 × 689,189,779.60
  4. Step 4: Simplify right side
    1,180,981,344.40x = 1,220,880,408,688,121,600
  5. Step 5: Solve for x
    x = 1,220,880,408,688,121,600/1,180,981,344.40
  6. Step 6: Final answer
    x = 1,033,784,669.40

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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.