Home / 19,958,981.70-29,938,472.55-18,447,327.30

Finding the Fourth Proportional to 19,958,981.70, 29,938,472.55 and 18,447,327.30

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Solution

The fourth proportional to 19,958,981.70, 29,938,472.55 and 18,447,327.30 is: 27,670,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958,981.70 : 29,938,472.55 = 18,447,327.30 : x
  2. Step 2: Convert to fraction form
    19,958,981.70/29,938,472.55 = 18,447,327.30/x
  3. Step 3: Cross multiply
    19,958,981.70x = 29,938,472.55 × 18,447,327.30
  4. Step 4: Simplify right side
    19,958,981.70x = 552,284,801,991,915.62
  5. Step 5: Solve for x
    x = 552,284,801,991,915.62/19,958,981.70
  6. Step 6: Final answer
    x = 27,670,990.95

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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.