Home / 144,048,071.25-198,786,348.05-78,857,975.25

Finding the Fourth Proportional to 144,048,071.25, 198,786,348.05 and 78,857,975.25

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Solution

The fourth proportional to 144,048,071.25, 198,786,348.05 and 78,857,975.25 is: 108,824,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,048,071.25 : 198,786,348.05 = 78,857,975.25 : x
  2. Step 2: Convert to fraction form
    144,048,071.25/198,786,348.05 = 78,857,975.25/x
  3. Step 3: Cross multiply
    144,048,071.25x = 198,786,348.05 × 78,857,975.25
  4. Step 4: Simplify right side
    144,048,071.25x = 15,675,888,914,170,494
  5. Step 5: Solve for x
    x = 15,675,888,914,170,494/144,048,071.25
  6. Step 6: Final answer
    x = 108,824,011.17

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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.