Home / 78,563,850.88-108,421,492.96-43,756,556.80

Finding the Fourth Proportional to 78,563,850.88, 108,421,492.96 and 43,756,556.80

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Solution

The fourth proportional to 78,563,850.88, 108,421,492.96 and 43,756,556.80 is: 60,385,930.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,563,850.88 : 108,421,492.96 = 43,756,556.80 : x
  2. Step 2: Convert to fraction form
    78,563,850.88/108,421,492.96 = 43,756,556.80/x
  3. Step 3: Cross multiply
    78,563,850.88x = 108,421,492.96 × 43,756,556.80
  4. Step 4: Simplify right side
    78,563,850.88x = 4,744,151,215,045,040
  5. Step 5: Solve for x
    x = 4,744,151,215,045,040/78,563,850.88
  6. Step 6: Final answer
    x = 60,385,930.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.