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Finding the Fourth Proportional to 556,059,163.90, 767,361,647.98 and 308,580,343.42

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Solution

The fourth proportional to 556,059,163.90, 767,361,647.98 and 308,580,343.42 is: 425,840,874.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,059,163.90 : 767,361,647.98 = 308,580,343.42 : x
  2. Step 2: Convert to fraction form
    556,059,163.90/767,361,647.98 = 308,580,343.42/x
  3. Step 3: Cross multiply
    556,059,163.90x = 767,361,647.98 × 308,580,343.42
  4. Step 4: Simplify right side
    556,059,163.90x = 236,792,720,861,005,568
  5. Step 5: Solve for x
    x = 236,792,720,861,005,568/556,059,163.90
  6. Step 6: Final answer
    x = 425,840,874.92

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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.