Home / 87,636,147.78-120,926,039.34-49,964,172.06

Finding the Fourth Proportional to 87,636,147.78, 120,926,039.34 and 49,964,172.06

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Solution

The fourth proportional to 87,636,147.78, 120,926,039.34 and 49,964,172.06 is: 68,943,804.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636,147.78 : 120,926,039.34 = 49,964,172.06 : x
  2. Step 2: Convert to fraction form
    87,636,147.78/120,926,039.34 = 49,964,172.06/x
  3. Step 3: Cross multiply
    87,636,147.78x = 120,926,039.34 × 49,964,172.06
  4. Step 4: Simplify right side
    87,636,147.78x = 6,041,969,436,118,089
  5. Step 5: Solve for x
    x = 6,041,969,436,118,089/87,636,147.78
  6. Step 6: Final answer
    x = 68,943,804.46

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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.