Home / 20,447,848.54-28,218,122.28-11,155,390.34

Finding the Fourth Proportional to 20,447,848.54, 28,218,122.28 and 11,155,390.34

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Solution

The fourth proportional to 20,447,848.54, 28,218,122.28 and 11,155,390.34 is: 15,394,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447,848.54 : 28,218,122.28 = 11,155,390.34 : x
  2. Step 2: Convert to fraction form
    20,447,848.54/28,218,122.28 = 11,155,390.34/x
  3. Step 3: Cross multiply
    20,447,848.54x = 28,218,122.28 × 11,155,390.34
  4. Step 4: Simplify right side
    20,447,848.54x = 314,784,168,695,250.81
  5. Step 5: Solve for x
    x = 314,784,168,695,250.81/20,447,848.54
  6. Step 6: Final answer
    x = 15,394,488.48

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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.