Home / 7,777,371.70-11,666,057.55-5,385,887.20

Finding the Fourth Proportional to 7,777,371.70, 11,666,057.55 and 5,385,887.20

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Solution

The fourth proportional to 7,777,371.70, 11,666,057.55 and 5,385,887.20 is: 8,078,830.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,371.70 : 11,666,057.55 = 5,385,887.20 : x
  2. Step 2: Convert to fraction form
    7,777,371.70/11,666,057.55 = 5,385,887.20/x
  3. Step 3: Cross multiply
    7,777,371.70x = 11,666,057.55 × 5,385,887.20
  4. Step 4: Simplify right side
    7,777,371.70x = 62,832,070,033,008.37
  5. Step 5: Solve for x
    x = 62,832,070,033,008.37/7,777,371.70
  6. Step 6: Final answer
    x = 8,078,830.80

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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.