Home / 21,171,507.78-31,759,156.05-8,217,354.75

Finding the Fourth Proportional to 21,171,507.78, 31,759,156.05 and 8,217,354.75

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Solution

The fourth proportional to 21,171,507.78, 31,759,156.05 and 8,217,354.75 is: 12,326,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171,507.78 : 31,759,156.05 = 8,217,354.75 : x
  2. Step 2: Convert to fraction form
    21,171,507.78/31,759,156.05 = 8,217,354.75/x
  3. Step 3: Cross multiply
    21,171,507.78x = 31,759,156.05 × 8,217,354.75
  4. Step 4: Simplify right side
    21,171,507.78x = 260,976,251,823,458.75
  5. Step 5: Solve for x
    x = 260,976,251,823,458.75/21,171,507.78
  6. Step 6: Final answer
    x = 12,326,767.40

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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.