Home / 12,253,219,010.20-18,379,828,515.30-10,509,826,809.70

Finding the Fourth Proportional to 12,253,219,010.20, 18,379,828,515.30 and 10,509,826,809.70

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Solution

The fourth proportional to 12,253,219,010.20, 18,379,828,515.30 and 10,509,826,809.70 is: 15,764,740,214.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253,219,010.20 : 18,379,828,515.30 = 10,509,826,809.70 : x
  2. Step 2: Convert to fraction form
    12,253,219,010.20/18,379,828,515.30 = 10,509,826,809.70/x
  3. Step 3: Cross multiply
    12,253,219,010.20x = 18,379,828,515.30 × 10,509,826,809.70
  4. Step 4: Simplify right side
    12,253,219,010.20x = 193,168,814,487,788,486,656
  5. Step 5: Solve for x
    x = 193,168,814,487,788,486,656/12,253,219,010.20
  6. Step 6: Final answer
    x = 15,764,740,214.55

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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.