Home / 313,690,635.44-432,890,684.22-172,558,817.91

Finding the Fourth Proportional to 313,690,635.44, 432,890,684.22 and 172,558,817.91

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Solution

The fourth proportional to 313,690,635.44, 432,890,684.22 and 172,558,817.91 is: 238,129,852.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,690,635.44 : 432,890,684.22 = 172,558,817.91 : x
  2. Step 2: Convert to fraction form
    313,690,635.44/432,890,684.22 = 172,558,817.91/x
  3. Step 3: Cross multiply
    313,690,635.44x = 432,890,684.22 × 172,558,817.91
  4. Step 4: Simplify right side
    313,690,635.44x = 74,699,104,753,254,288
  5. Step 5: Solve for x
    x = 74,699,104,753,254,288/313,690,635.44
  6. Step 6: Final answer
    x = 238,129,852.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.