Home / 85,093,947.40-127,640,921.10-84,456,218.20

Finding the Fourth Proportional to 85,093,947.40, 127,640,921.10 and 84,456,218.20

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Solution

The fourth proportional to 85,093,947.40, 127,640,921.10 and 84,456,218.20 is: 126,684,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,093,947.40 : 127,640,921.10 = 84,456,218.20 : x
  2. Step 2: Convert to fraction form
    85,093,947.40/127,640,921.10 = 84,456,218.20/x
  3. Step 3: Cross multiply
    85,093,947.40x = 127,640,921.10 × 84,456,218.20
  4. Step 4: Simplify right side
    85,093,947.40x = 10,780,069,483,670,584
  5. Step 5: Solve for x
    x = 10,780,069,483,670,584/85,093,947.40
  6. Step 6: Final answer
    x = 126,684,327.30

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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.