Home / 18,740,021.70-28,047,824.55-13,607,861.70

Finding the Fourth Proportional to 18,740,021.70, 28,047,824.55 and 13,607,861.70

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Solution

The fourth proportional to 18,740,021.70, 28,047,824.55 and 13,607,861.70 is: 20,366,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740,021.70 : 28,047,824.55 = 13,607,861.70 : x
  2. Step 2: Convert to fraction form
    18,740,021.70/28,047,824.55 = 13,607,861.70/x
  3. Step 3: Cross multiply
    18,740,021.70x = 28,047,824.55 × 13,607,861.70
  4. Step 4: Simplify right side
    18,740,021.70x = 381,670,917,462,264.75
  5. Step 5: Solve for x
    x = 381,670,917,462,264.75/18,740,021.70
  6. Step 6: Final answer
    x = 20,366,620.89

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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.