Home / 90,720,027.45-136,080,041.18-30,135,753.45

Finding the Fourth Proportional to 90,720,027.45, 136,080,041.18 and 30,135,753.45

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Solution

The fourth proportional to 90,720,027.45, 136,080,041.18 and 30,135,753.45 is: 45,203,630.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,720,027.45 : 136,080,041.18 = 30,135,753.45 : x
  2. Step 2: Convert to fraction form
    90,720,027.45/136,080,041.18 = 30,135,753.45/x
  3. Step 3: Cross multiply
    90,720,027.45x = 136,080,041.18 × 30,135,753.45
  4. Step 4: Simplify right side
    90,720,027.45x = 4,100,874,570,315,648.50
  5. Step 5: Solve for x
    x = 4,100,874,570,315,648.50/90,720,027.45
  6. Step 6: Final answer
    x = 45,203,630.18

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Similar ratio
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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.