Home / 13,442,327,445.95-18,550,439,347.38-7,420,841,132.55

Finding the Fourth Proportional to 13,442,327,445.95, 18,550,439,347.38 and 7,420,841,132.55

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Solution

The fourth proportional to 13,442,327,445.95, 18,550,439,347.38 and 7,420,841,132.55 is: 10,240,775,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442,327,445.95 : 18,550,439,347.38 = 7,420,841,132.55 : x
  2. Step 2: Convert to fraction form
    13,442,327,445.95/18,550,439,347.38 = 7,420,841,132.55/x
  3. Step 3: Cross multiply
    13,442,327,445.95x = 18,550,439,347.38 × 7,420,841,132.55
  4. Step 4: Simplify right side
    13,442,327,445.95x = 137,659,863,335,881,801,728
  5. Step 5: Solve for x
    x = 137,659,863,335,881,801,728/13,442,327,445.95
  6. Step 6: Final answer
    x = 10,240,775,928.82

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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.