Home / 28,768,139.80-43,115,468.10-11,709,539.80

Finding the Fourth Proportional to 28,768,139.80, 43,115,468.10 and 11,709,539.80

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Solution

The fourth proportional to 28,768,139.80, 43,115,468.10 and 11,709,539.80 is: 17,549,354.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768,139.80 : 43,115,468.10 = 11,709,539.80 : x
  2. Step 2: Convert to fraction form
    28,768,139.80/43,115,468.10 = 11,709,539.80/x
  3. Step 3: Cross multiply
    28,768,139.80x = 43,115,468.10 × 11,709,539.80
  4. Step 4: Simplify right side
    28,768,139.80x = 504,862,289,712,580.44
  5. Step 5: Solve for x
    x = 504,862,289,712,580.44/28,768,139.80
  6. Step 6: Final answer
    x = 17,549,354.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.