Home / 85,130,028.03-127,695,043.72-20,433,833.09

Finding the Fourth Proportional to 85,130,028.03, 127,695,043.72 and 20,433,833.09

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Solution

The fourth proportional to 85,130,028.03, 127,695,043.72 and 20,433,833.09 is: 30,650,750.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130,028.03 : 127,695,043.72 = 20,433,833.09 : x
  2. Step 2: Convert to fraction form
    85,130,028.03/127,695,043.72 = 20,433,833.09/x
  3. Step 3: Cross multiply
    85,130,028.03x = 127,695,043.72 × 20,433,833.09
  4. Step 4: Simplify right side
    85,130,028.03x = 2,609,299,209,794,732.50
  5. Step 5: Solve for x
    x = 2,609,299,209,794,732.50/85,130,028.03
  6. Step 6: Final answer
    x = 30,650,750.04

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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.