Home / 20,797,007.85-28,690,199.46-13,457,210.27

Finding the Fourth Proportional to 20,797,007.85, 28,690,199.46 and 13,457,210.27

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Solution

The fourth proportional to 20,797,007.85, 28,690,199.46 and 13,457,210.27 is: 18,564,692.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797,007.85 : 28,690,199.46 = 13,457,210.27 : x
  2. Step 2: Convert to fraction form
    20,797,007.85/28,690,199.46 = 13,457,210.27/x
  3. Step 3: Cross multiply
    20,797,007.85x = 28,690,199.46 × 13,457,210.27
  4. Step 4: Simplify right side
    20,797,007.85x = 386,090,046,678,009.50
  5. Step 5: Solve for x
    x = 386,090,046,678,009.50/20,797,007.85
  6. Step 6: Final answer
    x = 18,564,692.07

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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.