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Finding the Fourth Proportional to 139,158,045.23, 208,737,067.85 and 139,158,045.23

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Solution

The fourth proportional to 139,158,045.23, 208,737,067.85 and 139,158,045.23 is: 208,737,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,158,045.23 : 208,737,067.85 = 139,158,045.23 : x
  2. Step 2: Convert to fraction form
    139,158,045.23/208,737,067.85 = 139,158,045.23/x
  3. Step 3: Cross multiply
    139,158,045.23x = 208,737,067.85 × 139,158,045.23
  4. Step 4: Simplify right side
    139,158,045.23x = 29,047,442,327,308,400
  5. Step 5: Solve for x
    x = 29,047,442,327,308,400/139,158,045.23
  6. Step 6: Final answer
    x = 208,737,067.85

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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.