Home / 144,015,129.18-198,741,483.93-77,935,630.54

Finding the Fourth Proportional to 144,015,129.18, 198,741,483.93 and 77,935,630.54

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Solution

The fourth proportional to 144,015,129.18, 198,741,483.93 and 77,935,630.54 is: 107,551,497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,015,129.18 : 198,741,483.93 = 77,935,630.54 : x
  2. Step 2: Convert to fraction form
    144,015,129.18/198,741,483.93 = 77,935,630.54/x
  3. Step 3: Cross multiply
    144,015,129.18x = 198,741,483.93 × 77,935,630.54
  4. Step 4: Simplify right side
    144,015,129.18x = 15,489,042,864,539,830
  5. Step 5: Solve for x
    x = 15,489,042,864,539,830/144,015,129.18
  6. Step 6: Final answer
    x = 107,551,497.91

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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.