Home / 78,570,450.28-108,429,806.82-43,286,383.72

Finding the Fourth Proportional to 78,570,450.28, 108,429,806.82 and 43,286,383.72

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Solution

The fourth proportional to 78,570,450.28, 108,429,806.82 and 43,286,383.72 is: 59,736,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,570,450.28 : 108,429,806.82 = 43,286,383.72 : x
  2. Step 2: Convert to fraction form
    78,570,450.28/108,429,806.82 = 43,286,383.72/x
  3. Step 3: Cross multiply
    78,570,450.28x = 108,429,806.82 × 43,286,383.72
  4. Step 4: Simplify right side
    78,570,450.28x = 4,693,534,224,695,993
  5. Step 5: Solve for x
    x = 4,693,534,224,695,993/78,570,450.28
  6. Step 6: Final answer
    x = 59,736,633.91

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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.