Home / 20,802,605.07-28,708,441.10-11,510,023.96

Finding the Fourth Proportional to 20,802,605.07, 28,708,441.10 and 11,510,023.96

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Solution

The fourth proportional to 20,802,605.07, 28,708,441.10 and 11,510,023.96 is: 15,884,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,802,605.07 : 28,708,441.10 = 11,510,023.96 : x
  2. Step 2: Convert to fraction form
    20,802,605.07/28,708,441.10 = 11,510,023.96/x
  3. Step 3: Cross multiply
    20,802,605.07x = 28,708,441.10 × 11,510,023.96
  4. Step 4: Simplify right side
    20,802,605.07x = 330,434,844,915,248.81
  5. Step 5: Solve for x
    x = 330,434,844,915,248.81/20,802,605.07
  6. Step 6: Final answer
    x = 15,884,301.21

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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.