Home / 20,357,288.16-28,092,742.80-11,189,733.92

Finding the Fourth Proportional to 20,357,288.16, 28,092,742.80 and 11,189,733.92

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Solution

The fourth proportional to 20,357,288.16, 28,092,742.80 and 11,189,733.92 is: 15,441,659.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,288.16 : 28,092,742.80 = 11,189,733.92 : x
  2. Step 2: Convert to fraction form
    20,357,288.16/28,092,742.80 = 11,189,733.92/x
  3. Step 3: Cross multiply
    20,357,288.16x = 28,092,742.80 × 11,189,733.92
  4. Step 4: Simplify right side
    20,357,288.16x = 314,350,317,014,995.81
  5. Step 5: Solve for x
    x = 314,350,317,014,995.81/20,357,288.16
  6. Step 6: Final answer
    x = 15,441,659.74

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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.