Home / 15,000,447,473.88-20,698,714,891.80-8,224,482,971.94

Finding the Fourth Proportional to 15,000,447,473.88, 20,698,714,891.80 and 8,224,482,971.94

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Solution

The fourth proportional to 15,000,447,473.88, 20,698,714,891.80 and 8,224,482,971.94 is: 11,348,743,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000,447,473.88 : 20,698,714,891.80 = 8,224,482,971.94 : x
  2. Step 2: Convert to fraction form
    15,000,447,473.88/20,698,714,891.80 = 8,224,482,971.94/x
  3. Step 3: Cross multiply
    15,000,447,473.88x = 20,698,714,891.80 × 8,224,482,971.94
  4. Step 4: Simplify right side
    15,000,447,473.88x = 170,236,228,168,649,998,336
  5. Step 5: Solve for x
    x = 170,236,228,168,649,998,336/15,000,447,473.88
  6. Step 6: Final answer
    x = 11,348,743,326.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.