Home / 85,293,080.10-127,939,620.15-69,987,579.30

Finding the Fourth Proportional to 85,293,080.10, 127,939,620.15 and 69,987,579.30

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Solution

The fourth proportional to 85,293,080.10, 127,939,620.15 and 69,987,579.30 is: 104,981,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,293,080.10 : 127,939,620.15 = 69,987,579.30 : x
  2. Step 2: Convert to fraction form
    85,293,080.10/127,939,620.15 = 69,987,579.30/x
  3. Step 3: Cross multiply
    85,293,080.10x = 127,939,620.15 × 69,987,579.30
  4. Step 4: Simplify right side
    85,293,080.10x = 8,954,184,310,860,003
  5. Step 5: Solve for x
    x = 8,954,184,310,860,003/85,293,080.10
  6. Step 6: Final answer
    x = 104,981,368.95

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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.