Home / 511,145,909.10-766,718,863.65-317,654,145.90

Finding the Fourth Proportional to 511,145,909.10, 766,718,863.65 and 317,654,145.90

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Solution

The fourth proportional to 511,145,909.10, 766,718,863.65 and 317,654,145.90 is: 476,481,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,145,909.10 : 766,718,863.65 = 317,654,145.90 : x
  2. Step 2: Convert to fraction form
    511,145,909.10/766,718,863.65 = 317,654,145.90/x
  3. Step 3: Cross multiply
    511,145,909.10x = 766,718,863.65 × 317,654,145.90
  4. Step 4: Simplify right side
    511,145,909.10x = 243,551,425,778,159,296
  5. Step 5: Solve for x
    x = 243,551,425,778,159,296/511,145,909.10
  6. Step 6: Final answer
    x = 476,481,218.85

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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.