Home / 20,415,052.40-30,622,578.60-13,187,454.80

Finding the Fourth Proportional to 20,415,052.40, 30,622,578.60 and 13,187,454.80

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Solution

The fourth proportional to 20,415,052.40, 30,622,578.60 and 13,187,454.80 is: 19,781,182.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,052.40 : 30,622,578.60 = 13,187,454.80 : x
  2. Step 2: Convert to fraction form
    20,415,052.40/30,622,578.60 = 13,187,454.80/x
  3. Step 3: Cross multiply
    20,415,052.40x = 30,622,578.60 × 13,187,454.80
  4. Step 4: Simplify right side
    20,415,052.40x = 403,833,871,146,947.31
  5. Step 5: Solve for x
    x = 403,833,871,146,947.31/20,415,052.40
  6. Step 6: Final answer
    x = 19,781,182.20

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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.