Home / 21,048,309.27-31,566,983.42-8,911,525.43

Finding the Fourth Proportional to 21,048,309.27, 31,566,983.42 and 8,911,525.43

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Solution

The fourth proportional to 21,048,309.27, 31,566,983.42 and 8,911,525.43 is: 13,364,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,309.27 : 31,566,983.42 = 8,911,525.43 : x
  2. Step 2: Convert to fraction form
    21,048,309.27/31,566,983.42 = 8,911,525.43/x
  3. Step 3: Cross multiply
    21,048,309.27x = 31,566,983.42 × 8,911,525.43
  4. Step 4: Simplify right side
    21,048,309.27x = 281,309,975,293,325.84
  5. Step 5: Solve for x
    x = 281,309,975,293,325.84/21,048,309.27
  6. Step 6: Final answer
    x = 13,364,967.78

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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.