Home / 28,072,839.60-42,038,400.60-18,436,042.80

Finding the Fourth Proportional to 28,072,839.60, 42,038,400.60 and 18,436,042.80

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Solution

The fourth proportional to 28,072,839.60, 42,038,400.60 and 18,436,042.80 is: 27,607,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,839.60 : 42,038,400.60 = 18,436,042.80 : x
  2. Step 2: Convert to fraction form
    28,072,839.60/42,038,400.60 = 18,436,042.80/x
  3. Step 3: Cross multiply
    28,072,839.60x = 42,038,400.60 × 18,436,042.80
  4. Step 4: Simplify right side
    28,072,839.60x = 775,021,752,705,145.75
  5. Step 5: Solve for x
    x = 775,021,752,705,145.75/28,072,839.60
  6. Step 6: Final answer
    x = 27,607,529.69

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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.