Home / 78,636,688.76-118,008,152.94-27,519,150.44

Finding the Fourth Proportional to 78,636,688.76, 118,008,152.94 and 27,519,150.44

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Solution

The fourth proportional to 78,636,688.76, 118,008,152.94 and 27,519,150.44 is: 41,297,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,636,688.76 : 118,008,152.94 = 27,519,150.44 : x
  2. Step 2: Convert to fraction form
    78,636,688.76/118,008,152.94 = 27,519,150.44/x
  3. Step 3: Cross multiply
    78,636,688.76x = 118,008,152.94 × 27,519,150.44
  4. Step 4: Simplify right side
    78,636,688.76x = 3,247,484,113,902,388.50
  5. Step 5: Solve for x
    x = 3,247,484,113,902,388.50/78,636,688.76
  6. Step 6: Final answer
    x = 41,297,315.10

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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.