Home / 1,091,338,612.20-1,637,007,918.30-970,807,793.40

Finding the Fourth Proportional to 1,091,338,612.20, 1,637,007,918.30 and 970,807,793.40

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Solution

The fourth proportional to 1,091,338,612.20, 1,637,007,918.30 and 970,807,793.40 is: 1,456,211,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,338,612.20 : 1,637,007,918.30 = 970,807,793.40 : x
  2. Step 2: Convert to fraction form
    1,091,338,612.20/1,637,007,918.30 = 970,807,793.40/x
  3. Step 3: Cross multiply
    1,091,338,612.20x = 1,637,007,918.30 × 970,807,793.40
  4. Step 4: Simplify right side
    1,091,338,612.20x = 1,589,220,044,943,150,336
  5. Step 5: Solve for x
    x = 1,589,220,044,943,150,336/1,091,338,612.20
  6. Step 6: Final answer
    x = 1,456,211,690.10

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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.