Home / 20,828,325.44-28,740,900.90-11,535,651.98

Finding the Fourth Proportional to 20,828,325.44, 28,740,900.90 and 11,535,651.98

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Solution

The fourth proportional to 20,828,325.44, 28,740,900.90 and 11,535,651.98 is: 15,917,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,325.44 : 28,740,900.90 = 11,535,651.98 : x
  2. Step 2: Convert to fraction form
    20,828,325.44/28,740,900.90 = 11,535,651.98/x
  3. Step 3: Cross multiply
    20,828,325.44x = 28,740,900.90 × 11,535,651.98
  4. Step 4: Simplify right side
    20,828,325.44x = 331,545,030,374,068.75
  5. Step 5: Solve for x
    x = 331,545,030,374,068.75/20,828,325.44
  6. Step 6: Final answer
    x = 15,917,987.81

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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.