Home / 20,373,935.82-28,113,479.57-13,772,886.89

Finding the Fourth Proportional to 20,373,935.82, 28,113,479.57 and 13,772,886.89

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Solution

The fourth proportional to 20,373,935.82, 28,113,479.57 and 13,772,886.89 is: 19,004,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,935.82 : 28,113,479.57 = 13,772,886.89 : x
  2. Step 2: Convert to fraction form
    20,373,935.82/28,113,479.57 = 13,772,886.89/x
  3. Step 3: Cross multiply
    20,373,935.82x = 28,113,479.57 × 13,772,886.89
  4. Step 4: Simplify right side
    20,373,935.82x = 387,203,774,215,209.62
  5. Step 5: Solve for x
    x = 387,203,774,215,209.62/20,373,935.82
  6. Step 6: Final answer
    x = 19,004,858.84

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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.