Home / 1,120,142,857.10-1,680,214,285.65-966,961,877.90

Finding the Fourth Proportional to 1,120,142,857.10, 1,680,214,285.65 and 966,961,877.90

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Solution

The fourth proportional to 1,120,142,857.10, 1,680,214,285.65 and 966,961,877.90 is: 1,450,442,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,142,857.10 : 1,680,214,285.65 = 966,961,877.90 : x
  2. Step 2: Convert to fraction form
    1,120,142,857.10/1,680,214,285.65 = 966,961,877.90/x
  3. Step 3: Cross multiply
    1,120,142,857.10x = 1,680,214,285.65 × 966,961,877.90
  4. Step 4: Simplify right side
    1,120,142,857.10x = 1,624,703,160,926,531,072
  5. Step 5: Solve for x
    x = 1,624,703,160,926,531,072/1,120,142,857.10
  6. Step 6: Final answer
    x = 1,450,442,816.85

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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.