Home / 141,148,901.70-211,439,917.35-80,493,768.90

Finding the Fourth Proportional to 141,148,901.70, 211,439,917.35 and 80,493,768.90

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Solution

The fourth proportional to 141,148,901.70, 211,439,917.35 and 80,493,768.90 is: 120,579,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,148,901.70 : 211,439,917.35 = 80,493,768.90 : x
  2. Step 2: Convert to fraction form
    141,148,901.70/211,439,917.35 = 80,493,768.90/x
  3. Step 3: Cross multiply
    141,148,901.70x = 211,439,917.35 × 80,493,768.90
  4. Step 4: Simplify right side
    141,148,901.70x = 17,019,595,843,406,002
  5. Step 5: Solve for x
    x = 17,019,595,843,406,002/141,148,901.70
  6. Step 6: Final answer
    x = 120,579,017.18

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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.