Home / 28,752,538.88-39,678,345.38-15,699,704.92

Finding the Fourth Proportional to 28,752,538.88, 39,678,345.38 and 15,699,704.92

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Solution

The fourth proportional to 28,752,538.88, 39,678,345.38 and 15,699,704.92 is: 21,665,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752,538.88 : 39,678,345.38 = 15,699,704.92 : x
  2. Step 2: Convert to fraction form
    28,752,538.88/39,678,345.38 = 15,699,704.92/x
  3. Step 3: Cross multiply
    28,752,538.88x = 39,678,345.38 × 15,699,704.92
  4. Step 4: Simplify right side
    28,752,538.88x = 622,938,314,119,898.75
  5. Step 5: Solve for x
    x = 622,938,314,119,898.75/28,752,538.88
  6. Step 6: Final answer
    x = 21,665,506.36

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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.