Home / 420,246,394.71-579,933,970.92-232,082,650.32

Finding the Fourth Proportional to 420,246,394.71, 579,933,970.92 and 232,082,650.32

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Solution

The fourth proportional to 420,246,394.71, 579,933,970.92 and 232,082,650.32 is: 320,270,714.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,246,394.71 : 579,933,970.92 = 232,082,650.32 : x
  2. Step 2: Convert to fraction form
    420,246,394.71/579,933,970.92 = 232,082,650.32/x
  3. Step 3: Cross multiply
    420,246,394.71x = 579,933,970.92 × 232,082,650.32
  4. Step 4: Simplify right side
    420,246,394.71x = 134,592,612,981,715,392
  5. Step 5: Solve for x
    x = 134,592,612,981,715,392/420,246,394.71
  6. Step 6: Final answer
    x = 320,270,714.22

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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.