Home / 405,753,624-559,940,001.12-231,917,100.48

Finding the Fourth Proportional to 405,753,624, 559,940,001.12 and 231,917,100.48

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Solution

The fourth proportional to 405,753,624, 559,940,001.12 and 231,917,100.48 is: 320,045,598.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,753,624 : 559,940,001.12 = 231,917,100.48 : x
  2. Step 2: Convert to fraction form
    405,753,624/559,940,001.12 = 231,917,100.48/x
  3. Step 3: Cross multiply
    405,753,624x = 559,940,001.12 × 231,917,100.48
  4. Step 4: Simplify right side
    405,753,624x = 129,859,661,502,518,352
  5. Step 5: Solve for x
    x = 129,859,661,502,518,352/405,753,624
  6. Step 6: Final answer
    x = 320,045,598.66

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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.