Home / 84,128,671.11-126,414,938.64-45,295,834.37

Finding the Fourth Proportional to 84,128,671.11, 126,414,938.64 and 45,295,834.37

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Solution

The fourth proportional to 84,128,671.11, 126,414,938.64 and 45,295,834.37 is: 68,063,242.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,128,671.11 : 126,414,938.64 = 45,295,834.37 : x
  2. Step 2: Convert to fraction form
    84,128,671.11/126,414,938.64 = 45,295,834.37/x
  3. Step 3: Cross multiply
    84,128,671.11x = 126,414,938.64 × 45,295,834.37
  4. Step 4: Simplify right side
    84,128,671.11x = 5,726,070,122,531,153
  5. Step 5: Solve for x
    x = 5,726,070,122,531,153/84,128,671.11
  6. Step 6: Final answer
    x = 68,063,242.26

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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.