Home / 78,804,939.30-118,207,408.96-48,571,851.30

Finding the Fourth Proportional to 78,804,939.30, 118,207,408.96 and 48,571,851.30

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Solution

The fourth proportional to 78,804,939.30, 118,207,408.96 and 48,571,851.30 is: 72,857,776.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,939.30 : 118,207,408.96 = 48,571,851.30 : x
  2. Step 2: Convert to fraction form
    78,804,939.30/118,207,408.96 = 48,571,851.30/x
  3. Step 3: Cross multiply
    78,804,939.30x = 118,207,408.96 × 48,571,851.30
  4. Step 4: Simplify right side
    78,804,939.30x = 5,741,552,690,563,407
  5. Step 5: Solve for x
    x = 5,741,552,690,563,407/78,804,939.30
  6. Step 6: Final answer
    x = 72,857,776.96

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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.