Home / 511,285,837.20-766,480,858.20-306,895,232.40

Finding the Fourth Proportional to 511,285,837.20, 766,480,858.20 and 306,895,232.40

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Solution

The fourth proportional to 511,285,837.20, 766,480,858.20 and 306,895,232.40 is: 460,074,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,285,837.20 : 766,480,858.20 = 306,895,232.40 : x
  2. Step 2: Convert to fraction form
    511,285,837.20/766,480,858.20 = 306,895,232.40/x
  3. Step 3: Cross multiply
    511,285,837.20x = 766,480,858.20 × 306,895,232.40
  4. Step 4: Simplify right side
    511,285,837.20x = 235,229,321,107,440,448
  5. Step 5: Solve for x
    x = 235,229,321,107,440,448/511,285,837.20
  6. Step 6: Final answer
    x = 460,074,001.65

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1.5x scale

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.