Home / 38,661,990.40-57,991,142.40-13,100,492.80

Finding the Fourth Proportional to 38,661,990.40, 57,991,142.40 and 13,100,492.80

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Solution

The fourth proportional to 38,661,990.40, 57,991,142.40 and 13,100,492.80 is: 19,650,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661,990.40 : 57,991,142.40 = 13,100,492.80 : x
  2. Step 2: Convert to fraction form
    38,661,990.40/57,991,142.40 = 13,100,492.80/x
  3. Step 3: Cross multiply
    38,661,990.40x = 57,991,142.40 × 13,100,492.80
  4. Step 4: Simplify right side
    38,661,990.40x = 759,712,543,474,974.75
  5. Step 5: Solve for x
    x = 759,712,543,474,974.75/38,661,990.40
  6. Step 6: Final answer
    x = 19,650,114.64

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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.