Home / 80,541,661.45-120,763,049.31-31,300,019.14

Finding the Fourth Proportional to 80,541,661.45, 120,763,049.31 and 31,300,019.14

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Solution

The fourth proportional to 80,541,661.45, 120,763,049.31 and 31,300,019.14 is: 46,930,814.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,541,661.45 : 120,763,049.31 = 31,300,019.14 : x
  2. Step 2: Convert to fraction form
    80,541,661.45/120,763,049.31 = 31,300,019.14/x
  3. Step 3: Cross multiply
    80,541,661.45x = 120,763,049.31 × 31,300,019.14
  4. Step 4: Simplify right side
    80,541,661.45x = 3,779,885,754,807,764
  5. Step 5: Solve for x
    x = 3,779,885,754,807,764/80,541,661.45
  6. Step 6: Final answer
    x = 46,930,814.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.