Home / 38,290,990.36-57,436,984.02-12,731,999.80

Finding the Fourth Proportional to 38,290,990.36, 57,436,984.02 and 12,731,999.80

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Solution

The fourth proportional to 38,290,990.36, 57,436,984.02 and 12,731,999.80 is: 19,098,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,290,990.36 : 57,436,984.02 = 12,731,999.80 : x
  2. Step 2: Convert to fraction form
    38,290,990.36/57,436,984.02 = 12,731,999.80/x
  3. Step 3: Cross multiply
    38,290,990.36x = 57,436,984.02 × 12,731,999.80
  4. Step 4: Simplify right side
    38,290,990.36x = 731,287,669,055,243.25
  5. Step 5: Solve for x
    x = 731,287,669,055,243.25/38,290,990.36
  6. Step 6: Final answer
    x = 19,098,165.45

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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.