Home / 888,399,371.05-1,227,268,172.79-709,548,441.28

Finding the Fourth Proportional to 888,399,371.05, 1,227,268,172.79 and 709,548,441.28

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Solution

The fourth proportional to 888,399,371.05, 1,227,268,172.79 and 709,548,441.28 is: 980,196,798.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,399,371.05 : 1,227,268,172.79 = 709,548,441.28 : x
  2. Step 2: Convert to fraction form
    888,399,371.05/1,227,268,172.79 = 709,548,441.28/x
  3. Step 3: Cross multiply
    888,399,371.05x = 1,227,268,172.79 × 709,548,441.28
  4. Step 4: Simplify right side
    888,399,371.05x = 870,806,219,032,630,016
  5. Step 5: Solve for x
    x = 870,806,219,032,630,016/888,399,371.05
  6. Step 6: Final answer
    x = 980,196,798.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.