Home / 13,794,654,681.80-20,691,982,022.70-7,989,901,785.80

Finding the Fourth Proportional to 13,794,654,681.80, 20,691,982,022.70 and 7,989,901,785.80

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Solution

The fourth proportional to 13,794,654,681.80, 20,691,982,022.70 and 7,989,901,785.80 is: 11,984,852,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,794,654,681.80 : 20,691,982,022.70 = 7,989,901,785.80 : x
  2. Step 2: Convert to fraction form
    13,794,654,681.80/20,691,982,022.70 = 7,989,901,785.80/x
  3. Step 3: Cross multiply
    13,794,654,681.80x = 20,691,982,022.70 × 7,989,901,785.80
  4. Step 4: Simplify right side
    13,794,654,681.80x = 165,326,904,114,912,231,424
  5. Step 5: Solve for x
    x = 165,326,904,114,912,231,424/13,794,654,681.80
  6. Step 6: Final answer
    x = 11,984,852,678.70

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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.