Home / 2,153,616.87-2,972,011.21-1,186,781.76

Finding the Fourth Proportional to 2,153,616.87, 2,972,011.21 and 1,186,781.76

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Solution

The fourth proportional to 2,153,616.87, 2,972,011.21 and 1,186,781.76 is: 1,637,769.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,616.87 : 2,972,011.21 = 1,186,781.76 : x
  2. Step 2: Convert to fraction form
    2,153,616.87/2,972,011.21 = 1,186,781.76/x
  3. Step 3: Cross multiply
    2,153,616.87x = 2,972,011.21 × 1,186,781.76
  4. Step 4: Simplify right side
    2,153,616.87x = 3,527,128,673,749.56
  5. Step 5: Solve for x
    x = 3,527,128,673,749.56/2,153,616.87
  6. Step 6: Final answer
    x = 1,637,769.81

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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.