Home / 78,119,506.57-117,185,649.55-39,237,965.95

Finding the Fourth Proportional to 78,119,506.57, 117,185,649.55 and 39,237,965.95

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Solution

The fourth proportional to 78,119,506.57, 117,185,649.55 and 39,237,965.95 is: 58,860,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,119,506.57 : 117,185,649.55 = 39,237,965.95 : x
  2. Step 2: Convert to fraction form
    78,119,506.57/117,185,649.55 = 39,237,965.95/x
  3. Step 3: Cross multiply
    78,119,506.57x = 117,185,649.55 × 39,237,965.95
  4. Step 4: Simplify right side
    78,119,506.57x = 4,598,126,526,675,343
  5. Step 5: Solve for x
    x = 4,598,126,526,675,343/78,119,506.57
  6. Step 6: Final answer
    x = 58,860,158.35

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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.