Home / 320,751,002.71-442,572,360.87-195,219,117.55

Finding the Fourth Proportional to 320,751,002.71, 442,572,360.87 and 195,219,117.55

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Solution

The fourth proportional to 320,751,002.71, 442,572,360.87 and 195,219,117.55 is: 269,363,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,751,002.71 : 442,572,360.87 = 195,219,117.55 : x
  2. Step 2: Convert to fraction form
    320,751,002.71/442,572,360.87 = 195,219,117.55/x
  3. Step 3: Cross multiply
    320,751,002.71x = 442,572,360.87 × 195,219,117.55
  4. Step 4: Simplify right side
    320,751,002.71x = 86,398,585,741,061,552
  5. Step 5: Solve for x
    x = 86,398,585,741,061,552/320,751,002.71
  6. Step 6: Final answer
    x = 269,363,415.89

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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.