Home / 170,422,643.40-255,633,965.10-143,212,864.20

Finding the Fourth Proportional to 170,422,643.40, 255,633,965.10 and 143,212,864.20

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Solution

The fourth proportional to 170,422,643.40, 255,633,965.10 and 143,212,864.20 is: 214,819,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,422,643.40 : 255,633,965.10 = 143,212,864.20 : x
  2. Step 2: Convert to fraction form
    170,422,643.40/255,633,965.10 = 143,212,864.20/x
  3. Step 3: Cross multiply
    170,422,643.40x = 255,633,965.10 × 143,212,864.20
  4. Step 4: Simplify right side
    170,422,643.40x = 36,610,072,328,773,832
  5. Step 5: Solve for x
    x = 36,610,072,328,773,832/170,422,643.40
  6. Step 6: Final answer
    x = 214,819,296.30

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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.