Home / 20,550,222.12-28,358,089.78-11,255,938.68

Finding the Fourth Proportional to 20,550,222.12, 28,358,089.78 and 11,255,938.68

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Solution

The fourth proportional to 20,550,222.12, 28,358,089.78 and 11,255,938.68 is: 15,532,528.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550,222.12 : 28,358,089.78 = 11,255,938.68 : x
  2. Step 2: Convert to fraction form
    20,550,222.12/28,358,089.78 = 11,255,938.68/x
  3. Step 3: Cross multiply
    20,550,222.12x = 28,358,089.78 × 11,255,938.68
  4. Step 4: Simplify right side
    20,550,222.12x = 319,196,919,645,614.69
  5. Step 5: Solve for x
    x = 319,196,919,645,614.69/20,550,222.12
  6. Step 6: Final answer
    x = 15,532,528.93

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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.