Home / 28,768,105.80-43,115,417.10-11,709,505.80

Finding the Fourth Proportional to 28,768,105.80, 43,115,417.10 and 11,709,505.80

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Solution

The fourth proportional to 28,768,105.80, 43,115,417.10 and 11,709,505.80 is: 17,549,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,768,105.80 : 43,115,417.10 = 11,709,505.80 : x
  2. Step 2: Convert to fraction form
    28,768,105.80/43,115,417.10 = 11,709,505.80/x
  3. Step 3: Cross multiply
    28,768,105.80x = 43,115,417.10 × 11,709,505.80
  4. Step 4: Simplify right side
    28,768,105.80x = 504,860,226,601,869.25
  5. Step 5: Solve for x
    x = 504,860,226,601,869.25/28,768,105.80
  6. Step 6: Final answer
    x = 17,549,303.74

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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.