Home / 20,681,356.84-28,532,884.98-11,974,777

Finding the Fourth Proportional to 20,681,356.84, 28,532,884.98 and 11,974,777

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Solution

The fourth proportional to 20,681,356.84, 28,532,884.98 and 11,974,777 is: 16,520,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,356.84 : 28,532,884.98 = 11,974,777 : x
  2. Step 2: Convert to fraction form
    20,681,356.84/28,532,884.98 = 11,974,777/x
  3. Step 3: Cross multiply
    20,681,356.84x = 28,532,884.98 × 11,974,777
  4. Step 4: Simplify right side
    20,681,356.84x = 341,674,934,802,149.44
  5. Step 5: Solve for x
    x = 341,674,934,802,149.44/20,681,356.84
  6. Step 6: Final answer
    x = 16,520,914.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.