Home / 144,042,597.72-198,778,769.28-77,963,083.92

Finding the Fourth Proportional to 144,042,597.72, 198,778,769.28 and 77,963,083.92

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Solution

The fourth proportional to 144,042,597.72, 198,778,769.28 and 77,963,083.92 is: 107,589,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,042,597.72 : 198,778,769.28 = 77,963,083.92 : x
  2. Step 2: Convert to fraction form
    144,042,597.72/198,778,769.28 = 77,963,083.92/x
  3. Step 3: Cross multiply
    144,042,597.72x = 198,778,769.28 × 77,963,083.92
  4. Step 4: Simplify right side
    144,042,597.72x = 15,497,405,870,890,958
  5. Step 5: Solve for x
    x = 15,497,405,870,890,958/144,042,597.72
  6. Step 6: Final answer
    x = 107,589,047.38

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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.