Home / 78,636,686.76-118,008,149.94-27,519,148.44

Finding the Fourth Proportional to 78,636,686.76, 118,008,149.94 and 27,519,148.44

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Solution

The fourth proportional to 78,636,686.76, 118,008,149.94 and 27,519,148.44 is: 41,297,312.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636,686.76 : 118,008,149.94 = 27,519,148.44 : x
  2. Step 2: Convert to fraction form
    78,636,686.76/118,008,149.94 = 27,519,148.44/x
  3. Step 3: Cross multiply
    78,636,686.76x = 118,008,149.94 × 27,519,148.44
  4. Step 4: Simplify right side
    78,636,686.76x = 3,247,483,795,328,637
  5. Step 5: Solve for x
    x = 3,247,483,795,328,637/78,636,686.76
  6. Step 6: Final answer
    x = 41,297,312.10

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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.