Home / 21,011,272-31,516,908.52-5,054,920

Finding the Fourth Proportional to 21,011,272, 31,516,908.52 and 5,054,920

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Solution

The fourth proportional to 21,011,272, 31,516,908.52 and 5,054,920 is: 7,582,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,272 : 31,516,908.52 = 5,054,920 : x
  2. Step 2: Convert to fraction form
    21,011,272/31,516,908.52 = 5,054,920/x
  3. Step 3: Cross multiply
    21,011,272x = 31,516,908.52 × 5,054,920
  4. Step 4: Simplify right side
    21,011,272x = 159,315,451,215,918.41
  5. Step 5: Solve for x
    x = 159,315,451,215,918.41/21,011,272
  6. Step 6: Final answer
    x = 7,582,380.13

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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.