Home / 19,166,153.70-28,749,230.55-11,991,700.20

Finding the Fourth Proportional to 19,166,153.70, 28,749,230.55 and 11,991,700.20

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Solution

The fourth proportional to 19,166,153.70, 28,749,230.55 and 11,991,700.20 is: 17,987,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166,153.70 : 28,749,230.55 = 11,991,700.20 : x
  2. Step 2: Convert to fraction form
    19,166,153.70/28,749,230.55 = 11,991,700.20/x
  3. Step 3: Cross multiply
    19,166,153.70x = 28,749,230.55 × 11,991,700.20
  4. Step 4: Simplify right side
    19,166,153.70x = 344,752,153,736,281.12
  5. Step 5: Solve for x
    x = 344,752,153,736,281.12/19,166,153.70
  6. Step 6: Final answer
    x = 17,987,550.30

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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.