Home / 20,475,186.60-28,268,537.02-13,037,046.50

Finding the Fourth Proportional to 20,475,186.60, 28,268,537.02 and 13,037,046.50

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Solution

The fourth proportional to 20,475,186.60, 28,268,537.02 and 13,037,046.50 is: 17,999,261.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475,186.60 : 28,268,537.02 = 13,037,046.50 : x
  2. Step 2: Convert to fraction form
    20,475,186.60/28,268,537.02 = 13,037,046.50/x
  3. Step 3: Cross multiply
    20,475,186.60x = 28,268,537.02 × 13,037,046.50
  4. Step 4: Simplify right side
    20,475,186.60x = 368,538,231,616,711.44
  5. Step 5: Solve for x
    x = 368,538,231,616,711.44/20,475,186.60
  6. Step 6: Final answer
    x = 17,999,261.19

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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.