Home / 20,443,525.07-28,215,119.61-13,109,639.27

Finding the Fourth Proportional to 20,443,525.07, 28,215,119.61 and 13,109,639.27

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Solution

The fourth proportional to 20,443,525.07, 28,215,119.61 and 13,109,639.27 is: 18,093,261.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443,525.07 : 28,215,119.61 = 13,109,639.27 : x
  2. Step 2: Convert to fraction form
    20,443,525.07/28,215,119.61 = 13,109,639.27/x
  3. Step 3: Cross multiply
    20,443,525.07x = 28,215,119.61 × 13,109,639.27
  4. Step 4: Simplify right side
    20,443,525.07x = 369,890,039,905,927.50
  5. Step 5: Solve for x
    x = 369,890,039,905,927.50/20,443,525.07
  6. Step 6: Final answer
    x = 18,093,261.25

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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.