Home / 20,780,313.28-28,676,748.48-11,612,953.60

Finding the Fourth Proportional to 20,780,313.28, 28,676,748.48 and 11,612,953.60

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Solution

The fourth proportional to 20,780,313.28, 28,676,748.48 and 11,612,953.60 is: 16,025,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,780,313.28 : 28,676,748.48 = 11,612,953.60 : x
  2. Step 2: Convert to fraction form
    20,780,313.28/28,676,748.48 = 11,612,953.60/x
  3. Step 3: Cross multiply
    20,780,313.28x = 28,676,748.48 × 11,612,953.60
  4. Step 4: Simplify right side
    20,780,313.28x = 333,021,749,497,110.50
  5. Step 5: Solve for x
    x = 333,021,749,497,110.50/20,780,313.28
  6. Step 6: Final answer
    x = 16,025,829.11

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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.