Home / 20,922,432.36-28,873,301.98-11,503,621.32

Finding the Fourth Proportional to 20,922,432.36, 28,873,301.98 and 11,503,621.32

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Solution

The fourth proportional to 20,922,432.36, 28,873,301.98 and 11,503,621.32 is: 15,875,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922,432.36 : 28,873,301.98 = 11,503,621.32 : x
  2. Step 2: Convert to fraction form
    20,922,432.36/28,873,301.98 = 11,503,621.32/x
  3. Step 3: Cross multiply
    20,922,432.36x = 28,873,301.98 × 11,503,621.32
  4. Step 4: Simplify right side
    20,922,432.36x = 332,147,532,319,526.69
  5. Step 5: Solve for x
    x = 332,147,532,319,526.69/20,922,432.36
  6. Step 6: Final answer
    x = 15,875,187.29

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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.