Home / 7,728,880.48-10,666,188.16-4,291,121.76

Finding the Fourth Proportional to 7,728,880.48, 10,666,188.16 and 4,291,121.76

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Solution

The fourth proportional to 7,728,880.48, 10,666,188.16 and 4,291,121.76 is: 5,921,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,880.48 : 10,666,188.16 = 4,291,121.76 : x
  2. Step 2: Convert to fraction form
    7,728,880.48/10,666,188.16 = 4,291,121.76/x
  3. Step 3: Cross multiply
    7,728,880.48x = 10,666,188.16 × 4,291,121.76
  4. Step 4: Simplify right side
    7,728,880.48x = 45,769,912,109,630.36
  5. Step 5: Solve for x
    x = 45,769,912,109,630.36/7,728,880.48
  6. Step 6: Final answer
    x = 5,921,932.97

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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.