Home / 207,629,891.30-311,444,836.95-54,291,448.10

Finding the Fourth Proportional to 207,629,891.30, 311,444,836.95 and 54,291,448.10

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Solution

The fourth proportional to 207,629,891.30, 311,444,836.95 and 54,291,448.10 is: 81,437,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,629,891.30 : 311,444,836.95 = 54,291,448.10 : x
  2. Step 2: Convert to fraction form
    207,629,891.30/311,444,836.95 = 54,291,448.10/x
  3. Step 3: Cross multiply
    207,629,891.30x = 311,444,836.95 × 54,291,448.10
  4. Step 4: Simplify right side
    207,629,891.30x = 16,908,791,201,283,888
  5. Step 5: Solve for x
    x = 16,908,791,201,283,888/207,629,891.30
  6. Step 6: Final answer
    x = 81,437,172.15

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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.