Home / 28,135,628.16-38,827,167.12-15,912,222.72

Finding the Fourth Proportional to 28,135,628.16, 38,827,167.12 and 15,912,222.72

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Solution

The fourth proportional to 28,135,628.16, 38,827,167.12 and 15,912,222.72 is: 21,958,867.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135,628.16 : 38,827,167.12 = 15,912,222.72 : x
  2. Step 2: Convert to fraction form
    28,135,628.16/38,827,167.12 = 15,912,222.72/x
  3. Step 3: Cross multiply
    28,135,628.16x = 38,827,167.12 × 15,912,222.72
  4. Step 4: Simplify right side
    28,135,628.16x = 617,826,530,800,101
  5. Step 5: Solve for x
    x = 617,826,530,800,101/28,135,628.16
  6. Step 6: Final answer
    x = 21,958,867.50

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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.