Home / 72,535,638.88-108,848,065.67-28,808,747.21

Finding the Fourth Proportional to 72,535,638.88, 108,848,065.67 and 28,808,747.21

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Solution

The fourth proportional to 72,535,638.88, 108,848,065.67 and 28,808,747.21 is: 43,230,837.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,535,638.88 : 108,848,065.67 = 28,808,747.21 : x
  2. Step 2: Convert to fraction form
    72,535,638.88/108,848,065.67 = 28,808,747.21/x
  3. Step 3: Cross multiply
    72,535,638.88x = 108,848,065.67 × 28,808,747.21
  4. Step 4: Simplify right side
    72,535,638.88x = 3,135,776,408,420,618.50
  5. Step 5: Solve for x
    x = 3,135,776,408,420,618.50/72,535,638.88
  6. Step 6: Final answer
    x = 43,230,837.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.