Home / 20,915,291.52-28,862,473.44-11,622,830.40

Finding the Fourth Proportional to 20,915,291.52, 28,862,473.44 and 11,622,830.40

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Solution

The fourth proportional to 20,915,291.52, 28,862,473.44 and 11,622,830.40 is: 16,039,156.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,291.52 : 28,862,473.44 = 11,622,830.40 : x
  2. Step 2: Convert to fraction form
    20,915,291.52/28,862,473.44 = 11,622,830.40/x
  3. Step 3: Cross multiply
    20,915,291.52x = 28,862,473.44 × 11,622,830.40
  4. Step 4: Simplify right side
    20,915,291.52x = 335,463,633,717,624.62
  5. Step 5: Solve for x
    x = 335,463,633,717,624.62/20,915,291.52
  6. Step 6: Final answer
    x = 16,039,156.49

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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.