Home / 389,517,502.14-584,312,171.30-127,203,427.90

Finding the Fourth Proportional to 389,517,502.14, 584,312,171.30 and 127,203,427.90

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Solution

The fourth proportional to 389,517,502.14, 584,312,171.30 and 127,203,427.90 is: 190,816,871.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,517,502.14 : 584,312,171.30 = 127,203,427.90 : x
  2. Step 2: Convert to fraction form
    389,517,502.14/584,312,171.30 = 127,203,427.90/x
  3. Step 3: Cross multiply
    389,517,502.14x = 584,312,171.30 × 127,203,427.90
  4. Step 4: Simplify right side
    389,517,502.14x = 74,326,511,151,541,120
  5. Step 5: Solve for x
    x = 74,326,511,151,541,120/389,517,502.14
  6. Step 6: Final answer
    x = 190,816,871.50

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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.