Home / 165,888,139.20-248,832,208.80-85,266,571.20

Finding the Fourth Proportional to 165,888,139.20, 248,832,208.80 and 85,266,571.20

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Solution

The fourth proportional to 165,888,139.20, 248,832,208.80 and 85,266,571.20 is: 127,899,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,888,139.20 : 248,832,208.80 = 85,266,571.20 : x
  2. Step 2: Convert to fraction form
    165,888,139.20/248,832,208.80 = 85,266,571.20/x
  3. Step 3: Cross multiply
    165,888,139.20x = 248,832,208.80 × 85,266,571.20
  4. Step 4: Simplify right side
    165,888,139.20x = 21,217,069,248,498,468
  5. Step 5: Solve for x
    x = 21,217,069,248,498,468/165,888,139.20
  6. Step 6: Final answer
    x = 127,899,856.80

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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.