Home / 69,984,085.40-104,976,128.10-18,864,272.60

Finding the Fourth Proportional to 69,984,085.40, 104,976,128.10 and 18,864,272.60

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Solution

The fourth proportional to 69,984,085.40, 104,976,128.10 and 18,864,272.60 is: 28,296,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,085.40 : 104,976,128.10 = 18,864,272.60 : x
  2. Step 2: Convert to fraction form
    69,984,085.40/104,976,128.10 = 18,864,272.60/x
  3. Step 3: Cross multiply
    69,984,085.40x = 104,976,128.10 × 18,864,272.60
  4. Step 4: Simplify right side
    69,984,085.40x = 1,980,298,296,970,920
  5. Step 5: Solve for x
    x = 1,980,298,296,970,920/69,984,085.40
  6. Step 6: Final answer
    x = 28,296,408.90

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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.