Home / 90,820,004.40-125,435,866.68-66,150,100.08

Finding the Fourth Proportional to 90,820,004.40, 125,435,866.68 and 66,150,100.08

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Solution

The fourth proportional to 90,820,004.40, 125,435,866.68 and 66,150,100.08 is: 91,363,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,820,004.40 : 125,435,866.68 = 66,150,100.08 : x
  2. Step 2: Convert to fraction form
    90,820,004.40/125,435,866.68 = 66,150,100.08/x
  3. Step 3: Cross multiply
    90,820,004.40x = 125,435,866.68 × 66,150,100.08
  4. Step 4: Simplify right side
    90,820,004.40x = 8,297,595,134,503,538
  5. Step 5: Solve for x
    x = 8,297,595,134,503,538/90,820,004.40
  6. Step 6: Final answer
    x = 91,363,077.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.