Home / 20,762,432.11-28,652,975.97-11,941,869.36

Finding the Fourth Proportional to 20,762,432.11, 28,652,975.97 and 11,941,869.36

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Solution

The fourth proportional to 20,762,432.11, 28,652,975.97 and 11,941,869.36 is: 16,480,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,432.11 : 28,652,975.97 = 11,941,869.36 : x
  2. Step 2: Convert to fraction form
    20,762,432.11/28,652,975.97 = 11,941,869.36/x
  3. Step 3: Cross multiply
    20,762,432.11x = 28,652,975.97 × 11,941,869.36
  4. Step 4: Simplify right side
    20,762,432.11x = 342,170,095,808,959.25
  5. Step 5: Solve for x
    x = 342,170,095,808,959.25/20,762,432.11
  6. Step 6: Final answer
    x = 16,480,251.16

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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.