Home / 1,120,142,856.10-1,680,214,284.15-966,961,876.90

Finding the Fourth Proportional to 1,120,142,856.10, 1,680,214,284.15 and 966,961,876.90

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Solution

The fourth proportional to 1,120,142,856.10, 1,680,214,284.15 and 966,961,876.90 is: 1,450,442,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,142,856.10 : 1,680,214,284.15 = 966,961,876.90 : x
  2. Step 2: Convert to fraction form
    1,120,142,856.10/1,680,214,284.15 = 966,961,876.90/x
  3. Step 3: Cross multiply
    1,120,142,856.10x = 1,680,214,284.15 × 966,961,876.90
  4. Step 4: Simplify right side
    1,120,142,856.10x = 1,624,703,157,795,874,048
  5. Step 5: Solve for x
    x = 1,624,703,157,795,874,048/1,120,142,856.10
  6. Step 6: Final answer
    x = 1,450,442,815.35

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Half scale
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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.