Home / 21,276,774.42-31,919,645.31-6,898,721.05

Finding the Fourth Proportional to 21,276,774.42, 31,919,645.31 and 6,898,721.05

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Solution

The fourth proportional to 21,276,774.42, 31,919,645.31 and 6,898,721.05 is: 10,349,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276,774.42 : 31,919,645.31 = 6,898,721.05 : x
  2. Step 2: Convert to fraction form
    21,276,774.42/31,919,645.31 = 6,898,721.05/x
  3. Step 3: Cross multiply
    21,276,774.42x = 31,919,645.31 × 6,898,721.05
  4. Step 4: Simplify right side
    21,276,774.42x = 220,204,729,008,630.75
  5. Step 5: Solve for x
    x = 220,204,729,008,630.75/21,276,774.42
  6. Step 6: Final answer
    x = 10,349,535.35

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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.