Home / 6,829,998.80-10,237,999.80-3,988,648.40

Finding the Fourth Proportional to 6,829,998.80, 10,237,999.80 and 3,988,648.40

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Solution

The fourth proportional to 6,829,998.80, 10,237,999.80 and 3,988,648.40 is: 5,978,885.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,829,998.80 : 10,237,999.80 = 3,988,648.40 : x
  2. Step 2: Convert to fraction form
    6,829,998.80/10,237,999.80 = 3,988,648.40/x
  3. Step 3: Cross multiply
    6,829,998.80x = 10,237,999.80 × 3,988,648.40
  4. Step 4: Simplify right side
    6,829,998.80x = 40,835,781,521,470.32
  5. Step 5: Solve for x
    x = 40,835,781,521,470.32/6,829,998.80
  6. Step 6: Final answer
    x = 5,978,885.61

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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.