Home / 20,087,722.86-27,719,880.39-10,920,285.42

Finding the Fourth Proportional to 20,087,722.86, 27,719,880.39 and 10,920,285.42

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Solution

The fourth proportional to 20,087,722.86, 27,719,880.39 and 10,920,285.42 is: 15,069,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087,722.86 : 27,719,880.39 = 10,920,285.42 : x
  2. Step 2: Convert to fraction form
    20,087,722.86/27,719,880.39 = 10,920,285.42/x
  3. Step 3: Cross multiply
    20,087,722.86x = 27,719,880.39 × 10,920,285.42
  4. Step 4: Simplify right side
    20,087,722.86x = 302,709,005,667,060.94
  5. Step 5: Solve for x
    x = 302,709,005,667,060.94/20,087,722.86
  6. Step 6: Final answer
    x = 15,069,353.94

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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.