Home / 20,217,712.28-27,900,031.36-11,050,420.64

Finding the Fourth Proportional to 20,217,712.28, 27,900,031.36 and 11,050,420.64

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Solution

The fourth proportional to 20,217,712.28, 27,900,031.36 and 11,050,420.64 is: 15,249,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217,712.28 : 27,900,031.36 = 11,050,420.64 : x
  2. Step 2: Convert to fraction form
    20,217,712.28/27,900,031.36 = 11,050,420.64/x
  3. Step 3: Cross multiply
    20,217,712.28x = 27,900,031.36 × 11,050,420.64
  4. Step 4: Simplify right side
    20,217,712.28x = 308,307,082,397,191.25
  5. Step 5: Solve for x
    x = 308,307,082,397,191.25/20,217,712.28
  6. Step 6: Final answer
    x = 15,249,355.52

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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.