Home / 6,438,543,707.20-9,657,815,560.80-5,275,325,646.40

Finding the Fourth Proportional to 6,438,543,707.20, 9,657,815,560.80 and 5,275,325,646.40

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Solution

The fourth proportional to 6,438,543,707.20, 9,657,815,560.80 and 5,275,325,646.40 is: 7,912,988,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,543,707.20 : 9,657,815,560.80 = 5,275,325,646.40 : x
  2. Step 2: Convert to fraction form
    6,438,543,707.20/9,657,815,560.80 = 5,275,325,646.40/x
  3. Step 3: Cross multiply
    6,438,543,707.20x = 9,657,815,560.80 × 5,275,325,646.40
  4. Step 4: Simplify right side
    6,438,543,707.20x = 50,948,122,116,089,233,408
  5. Step 5: Solve for x
    x = 50,948,122,116,089,233,408/6,438,543,707.20
  6. Step 6: Final answer
    x = 7,912,988,469.60

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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.