Home / 12,357,325,315.20-18,535,987,972.80-8,439,117,110.40

Finding the Fourth Proportional to 12,357,325,315.20, 18,535,987,972.80 and 8,439,117,110.40

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Solution

The fourth proportional to 12,357,325,315.20, 18,535,987,972.80 and 8,439,117,110.40 is: 12,658,675,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,325,315.20 : 18,535,987,972.80 = 8,439,117,110.40 : x
  2. Step 2: Convert to fraction form
    12,357,325,315.20/18,535,987,972.80 = 8,439,117,110.40/x
  3. Step 3: Cross multiply
    12,357,325,315.20x = 18,535,987,972.80 × 8,439,117,110.40
  4. Step 4: Simplify right side
    12,357,325,315.20x = 156,427,373,259,425,087,488
  5. Step 5: Solve for x
    x = 156,427,373,259,425,087,488/12,357,325,315.20
  6. Step 6: Final answer
    x = 12,658,675,665.60

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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.