Home / 43,138,046.43-64,708,398.27-18,864,478.77

Finding the Fourth Proportional to 43,138,046.43, 64,708,398.27 and 18,864,478.77

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Solution

The fourth proportional to 43,138,046.43, 64,708,398.27 and 18,864,478.77 is: 28,297,299.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138,046.43 : 64,708,398.27 = 18,864,478.77 : x
  2. Step 2: Convert to fraction form
    43,138,046.43/64,708,398.27 = 18,864,478.77/x
  3. Step 3: Cross multiply
    43,138,046.43x = 64,708,398.27 × 18,864,478.77
  4. Step 4: Simplify right side
    43,138,046.43x = 1,220,690,205,405,119.75
  5. Step 5: Solve for x
    x = 1,220,690,205,405,119.75/43,138,046.43
  6. Step 6: Final answer
    x = 28,297,299.17

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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.