Home / 19,166,155.20-28,749,232.80-11,991,701.70

Finding the Fourth Proportional to 19,166,155.20, 28,749,232.80 and 11,991,701.70

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Solution

The fourth proportional to 19,166,155.20, 28,749,232.80 and 11,991,701.70 is: 17,987,552.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166,155.20 : 28,749,232.80 = 11,991,701.70 : x
  2. Step 2: Convert to fraction form
    19,166,155.20/28,749,232.80 = 11,991,701.70/x
  3. Step 3: Cross multiply
    19,166,155.20x = 28,749,232.80 × 11,991,701.70
  4. Step 4: Simplify right side
    19,166,155.20x = 344,752,223,841,455.75
  5. Step 5: Solve for x
    x = 344,752,223,841,455.75/19,166,155.20
  6. Step 6: Final answer
    x = 17,987,552.55

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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.