Home / 78,119,503.82-117,185,645.41-39,237,963.20

Finding the Fourth Proportional to 78,119,503.82, 117,185,645.41 and 39,237,963.20

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Solution

The fourth proportional to 78,119,503.82, 117,185,645.41 and 39,237,963.20 is: 58,860,154.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,119,503.82 : 117,185,645.41 = 39,237,963.20 : x
  2. Step 2: Convert to fraction form
    78,119,503.82/117,185,645.41 = 39,237,963.20/x
  3. Step 3: Cross multiply
    78,119,503.82x = 117,185,645.41 × 39,237,963.20
  4. Step 4: Simplify right side
    78,119,503.82x = 4,598,126,042,142,161
  5. Step 5: Solve for x
    x = 4,598,126,042,142,161/78,119,503.82
  6. Step 6: Final answer
    x = 58,860,154.22

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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.