Home / 12,129,150,943.80-18,193,726,415.70-3,405,015,487.80

Finding the Fourth Proportional to 12,129,150,943.80, 18,193,726,415.70 and 3,405,015,487.80

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Solution

The fourth proportional to 12,129,150,943.80, 18,193,726,415.70 and 3,405,015,487.80 is: 5,107,523,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,150,943.80 : 18,193,726,415.70 = 3,405,015,487.80 : x
  2. Step 2: Convert to fraction form
    12,129,150,943.80/18,193,726,415.70 = 3,405,015,487.80/x
  3. Step 3: Cross multiply
    12,129,150,943.80x = 18,193,726,415.70 × 3,405,015,487.80
  4. Step 4: Simplify right side
    12,129,150,943.80x = 61,949,920,226,254,487,552
  5. Step 5: Solve for x
    x = 61,949,920,226,254,487,552/12,129,150,943.80
  6. Step 6: Final answer
    x = 5,107,523,231.70

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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.