Home / 72,856,436.12-100,554,320.32-43,489,283.48

Finding the Fourth Proportional to 72,856,436.12, 100,554,320.32 and 43,489,283.48

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Solution

The fourth proportional to 72,856,436.12, 100,554,320.32 and 43,489,283.48 is: 60,022,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,856,436.12 : 100,554,320.32 = 43,489,283.48 : x
  2. Step 2: Convert to fraction form
    72,856,436.12/100,554,320.32 = 43,489,283.48/x
  3. Step 3: Cross multiply
    72,856,436.12x = 100,554,320.32 × 43,489,283.48
  4. Step 4: Simplify right side
    72,856,436.12x = 4,373,035,341,535,203.50
  5. Step 5: Solve for x
    x = 4,373,035,341,535,203.50/72,856,436.12
  6. Step 6: Final answer
    x = 60,022,635.95

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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.