Home / 13,390,136.39-20,068,393.95-7,241,872.97

Finding the Fourth Proportional to 13,390,136.39, 20,068,393.95 and 7,241,872.97

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Solution

The fourth proportional to 13,390,136.39, 20,068,393.95 and 7,241,872.97 is: 10,853,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,136.39 : 20,068,393.95 = 7,241,872.97 : x
  2. Step 2: Convert to fraction form
    13,390,136.39/20,068,393.95 = 7,241,872.97/x
  3. Step 3: Cross multiply
    13,390,136.39x = 20,068,393.95 × 7,241,872.97
  4. Step 4: Simplify right side
    13,390,136.39x = 145,332,759,747,987.50
  5. Step 5: Solve for x
    x = 145,332,759,747,987.50/13,390,136.39
  6. Step 6: Final answer
    x = 10,853,717.65

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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.