Home / 20,368,828.53-28,108,422.84-11,201,471.28

Finding the Fourth Proportional to 20,368,828.53, 28,108,422.84 and 11,201,471.28

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Solution

The fourth proportional to 20,368,828.53, 28,108,422.84 and 11,201,471.28 is: 15,457,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,828.53 : 28,108,422.84 = 11,201,471.28 : x
  2. Step 2: Convert to fraction form
    20,368,828.53/28,108,422.84 = 11,201,471.28/x
  3. Step 3: Cross multiply
    20,368,828.53x = 28,108,422.84 × 11,201,471.28
  4. Step 4: Simplify right side
    20,368,828.53x = 314,855,691,168,356
  5. Step 5: Solve for x
    x = 314,855,691,168,356/20,368,828.53
  6. Step 6: Final answer
    x = 15,457,722.11

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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.