Home / 72,444,074.73-108,652,248.53-28,128,361.56

Finding the Fourth Proportional to 72,444,074.73, 108,652,248.53 and 28,128,361.56

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Solution

The fourth proportional to 72,444,074.73, 108,652,248.53 and 28,128,361.56 is: 42,187,159.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444,074.73 : 108,652,248.53 = 28,128,361.56 : x
  2. Step 2: Convert to fraction form
    72,444,074.73/108,652,248.53 = 28,128,361.56/x
  3. Step 3: Cross multiply
    72,444,074.73x = 108,652,248.53 × 28,128,361.56
  4. Step 4: Simplify right side
    72,444,074.73x = 3,056,209,730,958,818.50
  5. Step 5: Solve for x
    x = 3,056,209,730,958,818.50/72,444,074.73
  6. Step 6: Final answer
    x = 42,187,159.44

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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.