Home / 758,454,083.87-1,137,681,128.53-213,195,617.87

Finding the Fourth Proportional to 758,454,083.87, 1,137,681,128.53 and 213,195,617.87

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Solution

The fourth proportional to 758,454,083.87, 1,137,681,128.53 and 213,195,617.87 is: 319,793,427.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,454,083.87 : 1,137,681,128.53 = 213,195,617.87 : x
  2. Step 2: Convert to fraction form
    758,454,083.87/1,137,681,128.53 = 213,195,617.87/x
  3. Step 3: Cross multiply
    758,454,083.87x = 1,137,681,128.53 × 213,195,617.87
  4. Step 4: Simplify right side
    758,454,083.87x = 242,548,631,129,770,848
  5. Step 5: Solve for x
    x = 242,548,631,129,770,848/758,454,083.87
  6. Step 6: Final answer
    x = 319,793,427.56

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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.