Home / 12,754,584,046.40-19,131,876,069.60-12,289,679,459.60

Finding the Fourth Proportional to 12,754,584,046.40, 19,131,876,069.60 and 12,289,679,459.60

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Solution

The fourth proportional to 12,754,584,046.40, 19,131,876,069.60 and 12,289,679,459.60 is: 18,434,519,189.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754,584,046.40 : 19,131,876,069.60 = 12,289,679,459.60 : x
  2. Step 2: Convert to fraction form
    12,754,584,046.40/19,131,876,069.60 = 12,289,679,459.60/x
  3. Step 3: Cross multiply
    12,754,584,046.40x = 19,131,876,069.60 × 12,289,679,459.60
  4. Step 4: Simplify right side
    12,754,584,046.40x = 235,124,624,356,175,904,768
  5. Step 5: Solve for x
    x = 235,124,624,356,175,904,768/12,754,584,046.40
  6. Step 6: Final answer
    x = 18,434,519,189.40

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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.