Home / 20,710,581.32-28,580,633.72-11,543,027.24

Finding the Fourth Proportional to 20,710,581.32, 28,580,633.72 and 11,543,027.24

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Solution

The fourth proportional to 20,710,581.32, 28,580,633.72 and 11,543,027.24 is: 15,929,395.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,581.32 : 28,580,633.72 = 11,543,027.24 : x
  2. Step 2: Convert to fraction form
    20,710,581.32/28,580,633.72 = 11,543,027.24/x
  3. Step 3: Cross multiply
    20,710,581.32x = 28,580,633.72 × 11,543,027.24
  4. Step 4: Simplify right side
    20,710,581.32x = 329,907,033,365,804.19
  5. Step 5: Solve for x
    x = 329,907,033,365,804.19/20,710,581.32
  6. Step 6: Final answer
    x = 15,929,395.14

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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.