Home / 55,356,687.60-83,035,031.40-21,279,145.20

Finding the Fourth Proportional to 55,356,687.60, 83,035,031.40 and 21,279,145.20

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Solution

The fourth proportional to 55,356,687.60, 83,035,031.40 and 21,279,145.20 is: 31,918,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,356,687.60 : 83,035,031.40 = 21,279,145.20 : x
  2. Step 2: Convert to fraction form
    55,356,687.60/83,035,031.40 = 21,279,145.20/x
  3. Step 3: Cross multiply
    55,356,687.60x = 83,035,031.40 × 21,279,145.20
  4. Step 4: Simplify right side
    55,356,687.60x = 1,766,914,489,847,159.25
  5. Step 5: Solve for x
    x = 1,766,914,489,847,159.25/55,356,687.60
  6. Step 6: Final answer
    x = 31,918,717.80

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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.