Home / 20,823,710.96-28,736,420.28-11,530,388.72

Finding the Fourth Proportional to 20,823,710.96, 28,736,420.28 and 11,530,388.72

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Solution

The fourth proportional to 20,823,710.96, 28,736,420.28 and 11,530,388.72 is: 15,911,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,710.96 : 28,736,420.28 = 11,530,388.72 : x
  2. Step 2: Convert to fraction form
    20,823,710.96/28,736,420.28 = 11,530,388.72/x
  3. Step 3: Cross multiply
    20,823,710.96x = 28,736,420.28 × 11,530,388.72
  4. Step 4: Simplify right side
    20,823,710.96x = 331,342,096,249,691.25
  5. Step 5: Solve for x
    x = 331,342,096,249,691.25/20,823,710.96
  6. Step 6: Final answer
    x = 15,911,769.85

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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.