Home / 21,276,774.92-31,919,646.06-6,898,721.55

Finding the Fourth Proportional to 21,276,774.92, 31,919,646.06 and 6,898,721.55

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Solution

The fourth proportional to 21,276,774.92, 31,919,646.06 and 6,898,721.55 is: 10,349,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276,774.92 : 31,919,646.06 = 6,898,721.55 : x
  2. Step 2: Convert to fraction form
    21,276,774.92/31,919,646.06 = 6,898,721.55/x
  3. Step 3: Cross multiply
    21,276,774.92x = 31,919,646.06 × 6,898,721.55
  4. Step 4: Simplify right side
    21,276,774.92x = 220,204,750,142,494.56
  5. Step 5: Solve for x
    x = 220,204,750,142,494.56/21,276,774.92
  6. Step 6: Final answer
    x = 10,349,536.10

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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.