Home / 20,650,128.58-28,497,201.06-11,482,574.50

Finding the Fourth Proportional to 20,650,128.58, 28,497,201.06 and 11,482,574.50

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Solution

The fourth proportional to 20,650,128.58, 28,497,201.06 and 11,482,574.50 is: 15,845,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650,128.58 : 28,497,201.06 = 11,482,574.50 : x
  2. Step 2: Convert to fraction form
    20,650,128.58/28,497,201.06 = 11,482,574.50/x
  3. Step 3: Cross multiply
    20,650,128.58x = 28,497,201.06 × 11,482,574.50
  4. Step 4: Simplify right side
    20,650,128.58x = 327,221,234,212,928.94
  5. Step 5: Solve for x
    x = 327,221,234,212,928.94/20,650,128.58
  6. Step 6: Final answer
    x = 15,845,965.94

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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.