Home / 85,213,043.20-127,819,564.80-80,846,041.60

Finding the Fourth Proportional to 85,213,043.20, 127,819,564.80 and 80,846,041.60

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Solution

The fourth proportional to 85,213,043.20, 127,819,564.80 and 80,846,041.60 is: 121,269,062.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213,043.20 : 127,819,564.80 = 80,846,041.60 : x
  2. Step 2: Convert to fraction form
    85,213,043.20/127,819,564.80 = 80,846,041.60/x
  3. Step 3: Cross multiply
    85,213,043.20x = 127,819,564.80 × 80,846,041.60
  4. Step 4: Simplify right side
    85,213,043.20x = 10,333,705,853,114,694
  5. Step 5: Solve for x
    x = 10,333,705,853,114,694/85,213,043.20
  6. Step 6: Final answer
    x = 121,269,062.40

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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.