Home / 487,210,958.82-730,524,579.36-155,074,493.30

Finding the Fourth Proportional to 487,210,958.82, 730,524,579.36 and 155,074,493.30

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Solution

The fourth proportional to 487,210,958.82, 730,524,579.36 and 155,074,493.30 is: 232,518,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,210,958.82 : 730,524,579.36 = 155,074,493.30 : x
  2. Step 2: Convert to fraction form
    487,210,958.82/730,524,579.36 = 155,074,493.30/x
  3. Step 3: Cross multiply
    487,210,958.82x = 730,524,579.36 × 155,074,493.30
  4. Step 4: Simplify right side
    487,210,958.82x = 113,285,728,983,795,008
  5. Step 5: Solve for x
    x = 113,285,728,983,795,008/487,210,958.82
  6. Step 6: Final answer
    x = 232,518,844.11

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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.