Home / 20,606,453.52-28,450,213.88-12,774,335.64

Finding the Fourth Proportional to 20,606,453.52, 28,450,213.88 and 12,774,335.64

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Solution

The fourth proportional to 20,606,453.52, 28,450,213.88 and 12,774,335.64 is: 17,636,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606,453.52 : 28,450,213.88 = 12,774,335.64 : x
  2. Step 2: Convert to fraction form
    20,606,453.52/28,450,213.88 = 12,774,335.64/x
  3. Step 3: Cross multiply
    20,606,453.52x = 28,450,213.88 × 12,774,335.64
  4. Step 4: Simplify right side
    20,606,453.52x = 363,432,581,069,035
  5. Step 5: Solve for x
    x = 363,432,581,069,035/20,606,453.52
  6. Step 6: Final answer
    x = 17,636,833.08

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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.