Home / 68,825,553.12-103,228,363.80-20,301,009.48

Finding the Fourth Proportional to 68,825,553.12, 103,228,363.80 and 20,301,009.48

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Solution

The fourth proportional to 68,825,553.12, 103,228,363.80 and 20,301,009.48 is: 30,448,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,825,553.12 : 103,228,363.80 = 20,301,009.48 : x
  2. Step 2: Convert to fraction form
    68,825,553.12/103,228,363.80 = 20,301,009.48/x
  3. Step 3: Cross multiply
    68,825,553.12x = 103,228,363.80 × 20,301,009.48
  4. Step 4: Simplify right side
    68,825,553.12x = 2,095,639,992,108,688.75
  5. Step 5: Solve for x
    x = 2,095,639,992,108,688.75/68,825,553.12
  6. Step 6: Final answer
    x = 30,448,574.65

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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.