Home / 78,149,008.19-117,241,367.93-27,030,983.87

Finding the Fourth Proportional to 78,149,008.19, 117,241,367.93 and 27,030,983.87

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Solution

The fourth proportional to 78,149,008.19, 117,241,367.93 and 27,030,983.87 is: 40,552,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,149,008.19 : 117,241,367.93 = 27,030,983.87 : x
  2. Step 2: Convert to fraction form
    78,149,008.19/117,241,367.93 = 27,030,983.87/x
  3. Step 3: Cross multiply
    78,149,008.19x = 117,241,367.93 × 27,030,983.87
  4. Step 4: Simplify right side
    78,149,008.19x = 3,169,149,525,671,879.50
  5. Step 5: Solve for x
    x = 3,169,149,525,671,879.50/78,149,008.19
  6. Step 6: Final answer
    x = 40,552,651.90

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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.