Home / 6,499,406.40-8,966,401.92-3,919,620.48

Finding the Fourth Proportional to 6,499,406.40, 8,966,401.92 and 3,919,620.48

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Solution

The fourth proportional to 6,499,406.40, 8,966,401.92 and 3,919,620.48 is: 5,407,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,499,406.40 : 8,966,401.92 = 3,919,620.48 : x
  2. Step 2: Convert to fraction form
    6,499,406.40/8,966,401.92 = 3,919,620.48/x
  3. Step 3: Cross multiply
    6,499,406.40x = 8,966,401.92 × 3,919,620.48
  4. Step 4: Simplify right side
    6,499,406.40x = 35,144,892,597,543.32
  5. Step 5: Solve for x
    x = 35,144,892,597,543.32/6,499,406.40
  6. Step 6: Final answer
    x = 5,407,400.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.