Home / 15,365,316.58-21,204,093.21-8,489,749.78

Finding the Fourth Proportional to 15,365,316.58, 21,204,093.21 and 8,489,749.78

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Solution

The fourth proportional to 15,365,316.58, 21,204,093.21 and 8,489,749.78 is: 11,715,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365,316.58 : 21,204,093.21 = 8,489,749.78 : x
  2. Step 2: Convert to fraction form
    15,365,316.58/21,204,093.21 = 8,489,749.78/x
  3. Step 3: Cross multiply
    15,365,316.58x = 21,204,093.21 × 8,489,749.78
  4. Step 4: Simplify right side
    15,365,316.58x = 180,017,445,664,697
  5. Step 5: Solve for x
    x = 180,017,445,664,697/15,365,316.58
  6. Step 6: Final answer
    x = 11,715,830.57

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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.