Home / 72,611,143.92-100,203,377.04-40,016,095.92

Finding the Fourth Proportional to 72,611,143.92, 100,203,377.04 and 40,016,095.92

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Solution

The fourth proportional to 72,611,143.92, 100,203,377.04 and 40,016,095.92 is: 55,222,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611,143.92 : 100,203,377.04 = 40,016,095.92 : x
  2. Step 2: Convert to fraction form
    72,611,143.92/100,203,377.04 = 40,016,095.92/x
  3. Step 3: Cross multiply
    72,611,143.92x = 100,203,377.04 × 40,016,095.92
  4. Step 4: Simplify right side
    72,611,143.92x = 4,009,747,947,140,566
  5. Step 5: Solve for x
    x = 4,009,747,947,140,566/72,611,143.92
  6. Step 6: Final answer
    x = 55,222,211.50

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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.