Home / 25,505,439,496.80-38,265,325,606.80-12,419,663,215.20

Finding the Fourth Proportional to 25,505,439,496.80, 38,265,325,606.80 and 12,419,663,215.20

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Solution

The fourth proportional to 25,505,439,496.80, 38,265,325,606.80 and 12,419,663,215.20 is: 18,632,984,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,505,439,496.80 : 38,265,325,606.80 = 12,419,663,215.20 : x
  2. Step 2: Convert to fraction form
    25,505,439,496.80/38,265,325,606.80 = 12,419,663,215.20/x
  3. Step 3: Cross multiply
    25,505,439,496.80x = 38,265,325,606.80 × 12,419,663,215.20
  4. Step 4: Simplify right side
    25,505,439,496.80x = 475,242,456,856,424,677,376
  5. Step 5: Solve for x
    x = 475,242,456,856,424,677,376/25,505,439,496.80
  6. Step 6: Final answer
    x = 18,632,984,423.42

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Double scale
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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.