Home / 169,115,404.80-253,673,107.20-128,804,620.80

Finding the Fourth Proportional to 169,115,404.80, 253,673,107.20 and 128,804,620.80

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Solution

The fourth proportional to 169,115,404.80, 253,673,107.20 and 128,804,620.80 is: 193,206,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,115,404.80 : 253,673,107.20 = 128,804,620.80 : x
  2. Step 2: Convert to fraction form
    169,115,404.80/253,673,107.20 = 128,804,620.80/x
  3. Step 3: Cross multiply
    169,115,404.80x = 253,673,107.20 × 128,804,620.80
  4. Step 4: Simplify right side
    169,115,404.80x = 32,674,268,380,053,748
  5. Step 5: Solve for x
    x = 32,674,268,380,053,748/169,115,404.80
  6. Step 6: Final answer
    x = 193,206,931.20

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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.