Home / 318,999,179.76-440,300,769.16-207,767,193.36

Finding the Fourth Proportional to 318,999,179.76, 440,300,769.16 and 207,767,193.36

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Solution

The fourth proportional to 318,999,179.76, 440,300,769.16 and 207,767,193.36 is: 286,772,069.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,999,179.76 : 440,300,769.16 = 207,767,193.36 : x
  2. Step 2: Convert to fraction form
    318,999,179.76/440,300,769.16 = 207,767,193.36/x
  3. Step 3: Cross multiply
    318,999,179.76x = 440,300,769.16 × 207,767,193.36
  4. Step 4: Simplify right side
    318,999,179.76x = 91,480,055,042,622,464
  5. Step 5: Solve for x
    x = 91,480,055,042,622,464/318,999,179.76
  6. Step 6: Final answer
    x = 286,772,069.79

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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.