Home / 30,279,712.70-45,365,440.80-18,427,266.20

Finding the Fourth Proportional to 30,279,712.70, 45,365,440.80 and 18,427,266.20

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Solution

The fourth proportional to 30,279,712.70, 45,365,440.80 and 18,427,266.20 is: 27,607,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279,712.70 : 45,365,440.80 = 18,427,266.20 : x
  2. Step 2: Convert to fraction form
    30,279,712.70/45,365,440.80 = 18,427,266.20/x
  3. Step 3: Cross multiply
    30,279,712.70x = 45,365,440.80 × 18,427,266.20
  4. Step 4: Simplify right side
    30,279,712.70x = 835,961,053,901,940.88
  5. Step 5: Solve for x
    x = 835,961,053,901,940.88/30,279,712.70
  6. Step 6: Final answer
    x = 27,607,958.58

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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.