Home / 78,523,900.56-117,839,653.76-27,405,919.36

Finding the Fourth Proportional to 78,523,900.56, 117,839,653.76 and 27,405,919.36

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Solution

The fourth proportional to 78,523,900.56, 117,839,653.76 and 27,405,919.36 is: 41,127,657.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,523,900.56 : 117,839,653.76 = 27,405,919.36 : x
  2. Step 2: Convert to fraction form
    78,523,900.56/117,839,653.76 = 27,405,919.36/x
  3. Step 3: Cross multiply
    78,523,900.56x = 117,839,653.76 × 27,405,919.36
  4. Step 4: Simplify right side
    78,523,900.56x = 3,229,504,048,356,881
  5. Step 5: Solve for x
    x = 3,229,504,048,356,881/78,523,900.56
  6. Step 6: Final answer
    x = 41,127,657.00

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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.