Home / 211,755,457.20-317,497,241.82-82,225,045.92

Finding the Fourth Proportional to 211,755,457.20, 317,497,241.82 and 82,225,045.92

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Solution

The fourth proportional to 211,755,457.20, 317,497,241.82 and 82,225,045.92 is: 123,284,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,755,457.20 : 317,497,241.82 = 82,225,045.92 : x
  2. Step 2: Convert to fraction form
    211,755,457.20/317,497,241.82 = 82,225,045.92/x
  3. Step 3: Cross multiply
    211,755,457.20x = 317,497,241.82 × 82,225,045.92
  4. Step 4: Simplify right side
    211,755,457.20x = 26,106,225,288,122,844
  5. Step 5: Solve for x
    x = 26,106,225,288,122,844/211,755,457.20
  6. Step 6: Final answer
    x = 123,284,781.57

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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.