Home / 69,984,221.40-104,976,332.10-18,864,408.60

Finding the Fourth Proportional to 69,984,221.40, 104,976,332.10 and 18,864,408.60

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Solution

The fourth proportional to 69,984,221.40, 104,976,332.10 and 18,864,408.60 is: 28,296,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,221.40 : 104,976,332.10 = 18,864,408.60 : x
  2. Step 2: Convert to fraction form
    69,984,221.40/104,976,332.10 = 18,864,408.60/x
  3. Step 3: Cross multiply
    69,984,221.40x = 104,976,332.10 × 18,864,408.60
  4. Step 4: Simplify right side
    69,984,221.40x = 1,980,316,422,063,696
  5. Step 5: Solve for x
    x = 1,980,316,422,063,696/69,984,221.40
  6. Step 6: Final answer
    x = 28,296,612.90

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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.