Home / 10,485,974.79-15,708,816.27-6,430,642.56

Finding the Fourth Proportional to 10,485,974.79, 15,708,816.27 and 6,430,642.56

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Solution

The fourth proportional to 10,485,974.79, 15,708,816.27 and 6,430,642.56 is: 9,633,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485,974.79 : 15,708,816.27 = 6,430,642.56 : x
  2. Step 2: Convert to fraction form
    10,485,974.79/15,708,816.27 = 6,430,642.56/x
  3. Step 3: Cross multiply
    10,485,974.79x = 15,708,816.27 × 6,430,642.56
  4. Step 4: Simplify right side
    10,485,974.79x = 101,017,782,473,082.44
  5. Step 5: Solve for x
    x = 101,017,782,473,082.44/10,485,974.79
  6. Step 6: Final answer
    x = 9,633,609.13

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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.