Home / 20,802,715.40-31,194,741.90-8,018,971.40

Finding the Fourth Proportional to 20,802,715.40, 31,194,741.90 and 8,018,971.40

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Solution

The fourth proportional to 20,802,715.40, 31,194,741.90 and 8,018,971.40 is: 12,024,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,715.40 : 31,194,741.90 = 8,018,971.40 : x
  2. Step 2: Convert to fraction form
    20,802,715.40/31,194,741.90 = 8,018,971.40/x
  3. Step 3: Cross multiply
    20,802,715.40x = 31,194,741.90 × 8,018,971.40
  4. Step 4: Simplify right side
    20,802,715.40x = 250,149,743,126,481.66
  5. Step 5: Solve for x
    x = 250,149,743,126,481.66/20,802,715.40
  6. Step 6: Final answer
    x = 12,024,860.14

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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.