Home / 1,120,142,853.10-1,680,214,279.65-966,961,873.90

Finding the Fourth Proportional to 1,120,142,853.10, 1,680,214,279.65 and 966,961,873.90

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Solution

The fourth proportional to 1,120,142,853.10, 1,680,214,279.65 and 966,961,873.90 is: 1,450,442,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,142,853.10 : 1,680,214,279.65 = 966,961,873.90 : x
  2. Step 2: Convert to fraction form
    1,120,142,853.10/1,680,214,279.65 = 966,961,873.90/x
  3. Step 3: Cross multiply
    1,120,142,853.10x = 1,680,214,279.65 × 966,961,873.90
  4. Step 4: Simplify right side
    1,120,142,853.10x = 1,624,703,148,403,902,720
  5. Step 5: Solve for x
    x = 1,624,703,148,403,902,720/1,120,142,853.10
  6. Step 6: Final answer
    x = 1,450,442,810.85

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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.