Home / 78,881,190.80-118,321,786.20-36,413,862.80

Finding the Fourth Proportional to 78,881,190.80, 118,321,786.20 and 36,413,862.80

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Solution

The fourth proportional to 78,881,190.80, 118,321,786.20 and 36,413,862.80 is: 54,620,794.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,881,190.80 : 118,321,786.20 = 36,413,862.80 : x
  2. Step 2: Convert to fraction form
    78,881,190.80/118,321,786.20 = 36,413,862.80/x
  3. Step 3: Cross multiply
    78,881,190.80x = 118,321,786.20 × 36,413,862.80
  4. Step 4: Simplify right side
    78,881,190.80x = 4,308,553,288,937,733
  5. Step 5: Solve for x
    x = 4,308,553,288,937,733/78,881,190.80
  6. Step 6: Final answer
    x = 54,620,794.20

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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.