Home / 78,029,588.80-117,044,383.20-73,246,619.80

Finding the Fourth Proportional to 78,029,588.80, 117,044,383.20 and 73,246,619.80

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Solution

The fourth proportional to 78,029,588.80, 117,044,383.20 and 73,246,619.80 is: 109,869,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,029,588.80 : 117,044,383.20 = 73,246,619.80 : x
  2. Step 2: Convert to fraction form
    78,029,588.80/117,044,383.20 = 73,246,619.80/x
  3. Step 3: Cross multiply
    78,029,588.80x = 117,044,383.20 × 73,246,619.80
  4. Step 4: Simplify right side
    78,029,588.80x = 8,573,105,435,975,907
  5. Step 5: Solve for x
    x = 8,573,105,435,975,907/78,029,588.80
  6. Step 6: Final answer
    x = 109,869,929.70

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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.