Home / 72,444,074.23-108,652,247.78-28,128,361.06

Finding the Fourth Proportional to 72,444,074.23, 108,652,247.78 and 28,128,361.06

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Solution

The fourth proportional to 72,444,074.23, 108,652,247.78 and 28,128,361.06 is: 42,187,158.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444,074.23 : 108,652,247.78 = 28,128,361.06 : x
  2. Step 2: Convert to fraction form
    72,444,074.23/108,652,247.78 = 28,128,361.06/x
  3. Step 3: Cross multiply
    72,444,074.23x = 108,652,247.78 × 28,128,361.06
  4. Step 4: Simplify right side
    72,444,074.23x = 3,056,209,655,335,114
  5. Step 5: Solve for x
    x = 3,056,209,655,335,114/72,444,074.23
  6. Step 6: Final answer
    x = 42,187,158.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.