Home / 510,272,516.79-765,520,403.30-165,261,019.59

Finding the Fourth Proportional to 510,272,516.79, 765,520,403.30 and 165,261,019.59

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Solution

The fourth proportional to 510,272,516.79, 765,520,403.30 and 165,261,019.59 is: 247,927,682.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,272,516.79 : 765,520,403.30 = 165,261,019.59 : x
  2. Step 2: Convert to fraction form
    510,272,516.79/765,520,403.30 = 165,261,019.59/x
  3. Step 3: Cross multiply
    510,272,516.79x = 765,520,403.30 × 165,261,019.59
  4. Step 4: Simplify right side
    510,272,516.79x = 126,510,682,365,479,696
  5. Step 5: Solve for x
    x = 126,510,682,365,479,696/510,272,516.79
  6. Step 6: Final answer
    x = 247,927,682.18

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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.