Home / 15,253,424.37-21,051,023.81-8,639,189.42

Finding the Fourth Proportional to 15,253,424.37, 21,051,023.81 and 8,639,189.42

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Solution

The fourth proportional to 15,253,424.37, 21,051,023.81 and 8,639,189.42 is: 11,922,816.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253,424.37 : 21,051,023.81 = 8,639,189.42 : x
  2. Step 2: Convert to fraction form
    15,253,424.37/21,051,023.81 = 8,639,189.42/x
  3. Step 3: Cross multiply
    15,253,424.37x = 21,051,023.81 × 8,639,189.42
  4. Step 4: Simplify right side
    15,253,424.37x = 181,863,782,031,069
  5. Step 5: Solve for x
    x = 181,863,782,031,069/15,253,424.37
  6. Step 6: Final answer
    x = 11,922,816.65

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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.