Home / 120,195,000.20-180,292,500.30-74,845,368.20

Finding the Fourth Proportional to 120,195,000.20, 180,292,500.30 and 74,845,368.20

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Solution

The fourth proportional to 120,195,000.20, 180,292,500.30 and 74,845,368.20 is: 112,268,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,195,000.20 : 180,292,500.30 = 74,845,368.20 : x
  2. Step 2: Convert to fraction form
    120,195,000.20/180,292,500.30 = 74,845,368.20/x
  3. Step 3: Cross multiply
    120,195,000.20x = 180,292,500.30 × 74,845,368.20
  4. Step 4: Simplify right side
    120,195,000.20x = 13,494,058,568,652,112
  5. Step 5: Solve for x
    x = 13,494,058,568,652,112/120,195,000.20
  6. Step 6: Final answer
    x = 112,268,052.30

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1.5x scale

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.