Home / 30,279,296.70-45,364,816.80-18,426,850.20

Finding the Fourth Proportional to 30,279,296.70, 45,364,816.80 and 18,426,850.20

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Solution

The fourth proportional to 30,279,296.70, 45,364,816.80 and 18,426,850.20 is: 27,607,334.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279,296.70 : 45,364,816.80 = 18,426,850.20 : x
  2. Step 2: Convert to fraction form
    30,279,296.70/45,364,816.80 = 18,426,850.20/x
  3. Step 3: Cross multiply
    30,279,296.70x = 45,364,816.80 × 18,426,850.20
  4. Step 4: Simplify right side
    30,279,296.70x = 835,930,683,524,043.25
  5. Step 5: Solve for x
    x = 835,930,683,524,043.25/30,279,296.70
  6. Step 6: Final answer
    x = 27,607,334.87

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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.