Home / 890,313,045.59-1,228,628,067.09-508,828,716.14

Finding the Fourth Proportional to 890,313,045.59, 1,228,628,067.09 and 508,828,716.14

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Solution

The fourth proportional to 890,313,045.59, 1,228,628,067.09 and 508,828,716.14 is: 702,181,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,313,045.59 : 1,228,628,067.09 = 508,828,716.14 : x
  2. Step 2: Convert to fraction form
    890,313,045.59/1,228,628,067.09 = 508,828,716.14/x
  3. Step 3: Cross multiply
    890,313,045.59x = 1,228,628,067.09 × 508,828,716.14
  4. Step 4: Simplify right side
    890,313,045.59x = 625,161,241,990,974,464
  5. Step 5: Solve for x
    x = 625,161,241,990,974,464/890,313,045.59
  6. Step 6: Final answer
    x = 702,181,378.88

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1.5x scale

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.