Home / 144,140,727.20-198,911,745.06-78,060,688.52

Finding the Fourth Proportional to 144,140,727.20, 198,911,745.06 and 78,060,688.52

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Solution

The fourth proportional to 144,140,727.20, 198,911,745.06 and 78,060,688.52 is: 107,722,418.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140,727.20 : 198,911,745.06 = 78,060,688.52 : x
  2. Step 2: Convert to fraction form
    144,140,727.20/198,911,745.06 = 78,060,688.52/x
  3. Step 3: Cross multiply
    144,140,727.20x = 198,911,745.06 × 78,060,688.52
  4. Step 4: Simplify right side
    144,140,727.20x = 15,527,187,774,098,308
  5. Step 5: Solve for x
    x = 15,527,187,774,098,308/144,140,727.20
  6. Step 6: Final answer
    x = 107,722,418.75

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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.