Home / 20,797,212.29-28,690,483.32-13,457,415.42

Finding the Fourth Proportional to 20,797,212.29, 28,690,483.32 and 13,457,415.42

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Solution

The fourth proportional to 20,797,212.29, 28,690,483.32 and 13,457,415.42 is: 18,564,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797,212.29 : 28,690,483.32 = 13,457,415.42 : x
  2. Step 2: Convert to fraction form
    20,797,212.29/28,690,483.32 = 13,457,415.42/x
  3. Step 3: Cross multiply
    20,797,212.29x = 28,690,483.32 × 13,457,415.42
  4. Step 4: Simplify right side
    20,797,212.29x = 386,099,752,637,820.81
  5. Step 5: Solve for x
    x = 386,099,752,637,820.81/20,797,212.29
  6. Step 6: Final answer
    x = 18,564,976.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.