Home / 120,967,897.30-181,153,247.55-80,358,514.90

Finding the Fourth Proportional to 120,967,897.30, 181,153,247.55 and 80,358,514.90

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Solution

The fourth proportional to 120,967,897.30, 181,153,247.55 and 80,358,514.90 is: 120,339,414.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,967,897.30 : 181,153,247.55 = 80,358,514.90 : x
  2. Step 2: Convert to fraction form
    120,967,897.30/181,153,247.55 = 80,358,514.90/x
  3. Step 3: Cross multiply
    120,967,897.30x = 181,153,247.55 × 80,358,514.90
  4. Step 4: Simplify right side
    120,967,897.30x = 14,557,205,942,430,066
  5. Step 5: Solve for x
    x = 14,557,205,942,430,066/120,967,897.30
  6. Step 6: Final answer
    x = 120,339,414.57

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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.