Home / 85,972,267.20-128,958,400.80-22,146,859.20

Finding the Fourth Proportional to 85,972,267.20, 128,958,400.80 and 22,146,859.20

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Solution

The fourth proportional to 85,972,267.20, 128,958,400.80 and 22,146,859.20 is: 33,220,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,972,267.20 : 128,958,400.80 = 22,146,859.20 : x
  2. Step 2: Convert to fraction form
    85,972,267.20/128,958,400.80 = 22,146,859.20/x
  3. Step 3: Cross multiply
    85,972,267.20x = 128,958,400.80 × 22,146,859.20
  4. Step 4: Simplify right side
    85,972,267.20x = 2,856,023,545,174,767
  5. Step 5: Solve for x
    x = 2,856,023,545,174,767/85,972,267.20
  6. Step 6: Final answer
    x = 33,220,288.80

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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.