Home / 1,320,912,001.80-1,981,368,002.70-544,157,836.20

Finding the Fourth Proportional to 1,320,912,001.80, 1,981,368,002.70 and 544,157,836.20

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Solution

The fourth proportional to 1,320,912,001.80, 1,981,368,002.70 and 544,157,836.20 is: 816,236,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,912,001.80 : 1,981,368,002.70 = 544,157,836.20 : x
  2. Step 2: Convert to fraction form
    1,320,912,001.80/1,981,368,002.70 = 544,157,836.20/x
  3. Step 3: Cross multiply
    1,320,912,001.80x = 1,981,368,002.70 × 544,157,836.20
  4. Step 4: Simplify right side
    1,320,912,001.80x = 1,078,176,925,065,147,904
  5. Step 5: Solve for x
    x = 1,078,176,925,065,147,904/1,320,912,001.80
  6. Step 6: Final answer
    x = 816,236,754.30

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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.