Home / 85,972,291.20-128,958,436.80-22,146,883.20

Finding the Fourth Proportional to 85,972,291.20, 128,958,436.80 and 22,146,883.20

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Solution

The fourth proportional to 85,972,291.20, 128,958,436.80 and 22,146,883.20 is: 33,220,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,972,291.20 : 128,958,436.80 = 22,146,883.20 : x
  2. Step 2: Convert to fraction form
    85,972,291.20/128,958,436.80 = 22,146,883.20/x
  3. Step 3: Cross multiply
    85,972,291.20x = 128,958,436.80 × 22,146,883.20
  4. Step 4: Simplify right side
    85,972,291.20x = 2,856,027,437,464,181.50
  5. Step 5: Solve for x
    x = 2,856,027,437,464,181.50/85,972,291.20
  6. Step 6: Final answer
    x = 33,220,324.80

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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.