Home / 144,149,781.80-198,926,636.47-78,070,283.33

Finding the Fourth Proportional to 144,149,781.80, 198,926,636.47 and 78,070,283.33

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Solution

The fourth proportional to 144,149,781.80, 198,926,636.47 and 78,070,283.33 is: 107,736,957.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,149,781.80 : 198,926,636.47 = 78,070,283.33 : x
  2. Step 2: Convert to fraction form
    144,149,781.80/198,926,636.47 = 78,070,283.33/x
  3. Step 3: Cross multiply
    144,149,781.80x = 198,926,636.47 × 78,070,283.33
  4. Step 4: Simplify right side
    144,149,781.80x = 15,530,258,869,907,002
  5. Step 5: Solve for x
    x = 15,530,258,869,907,002/144,149,781.80
  6. Step 6: Final answer
    x = 107,736,957.18

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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.