Home / 6,438,548,047.20-9,657,822,070.80-5,520,217,999.20

Finding the Fourth Proportional to 6,438,548,047.20, 9,657,822,070.80 and 5,520,217,999.20

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Solution

The fourth proportional to 6,438,548,047.20, 9,657,822,070.80 and 5,520,217,999.20 is: 8,280,326,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,548,047.20 : 9,657,822,070.80 = 5,520,217,999.20 : x
  2. Step 2: Convert to fraction form
    6,438,548,047.20/9,657,822,070.80 = 5,520,217,999.20/x
  3. Step 3: Cross multiply
    6,438,548,047.20x = 9,657,822,070.80 × 5,520,217,999.20
  4. Step 4: Simplify right side
    6,438,548,047.20x = 53,313,283,228,301,172,736
  5. Step 5: Solve for x
    x = 53,313,283,228,301,172,736/6,438,548,047.20
  6. Step 6: Final answer
    x = 8,280,326,998.80

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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.