Home / 78,171,381.88-117,180,821.68-37,219,817.82

Finding the Fourth Proportional to 78,171,381.88, 117,180,821.68 and 37,219,817.82

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Solution

The fourth proportional to 78,171,381.88, 117,180,821.68 and 37,219,817.82 is: 55,793,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,381.88 : 117,180,821.68 = 37,219,817.82 : x
  2. Step 2: Convert to fraction form
    78,171,381.88/117,180,821.68 = 37,219,817.82/x
  3. Step 3: Cross multiply
    78,171,381.88x = 117,180,821.68 × 37,219,817.82
  4. Step 4: Simplify right side
    78,171,381.88x = 4,361,448,834,927,506.50
  5. Step 5: Solve for x
    x = 4,361,448,834,927,506.50/78,171,381.88
  6. Step 6: Final answer
    x = 55,793,421.20

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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.