Home / 20,796,983.06-28,690,165.33-13,457,185.52

Finding the Fourth Proportional to 20,796,983.06, 28,690,165.33 and 13,457,185.52

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Solution

The fourth proportional to 20,796,983.06, 28,690,165.33 and 13,457,185.52 is: 18,564,657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,983.06 : 28,690,165.33 = 13,457,185.52 : x
  2. Step 2: Convert to fraction form
    20,796,983.06/28,690,165.33 = 13,457,185.52/x
  3. Step 3: Cross multiply
    20,796,983.06x = 28,690,165.33 × 13,457,185.52
  4. Step 4: Simplify right side
    20,796,983.06x = 386,088,877,268,188.25
  5. Step 5: Solve for x
    x = 386,088,877,268,188.25/20,796,983.06
  6. Step 6: Final answer
    x = 18,564,657.97

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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.