Home / 2,116,034.68-2,921,021.46-1,428,637.70

Finding the Fourth Proportional to 2,116,034.68, 2,921,021.46 and 1,428,637.70

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Solution

The fourth proportional to 2,116,034.68, 2,921,021.46 and 1,428,637.70 is: 1,972,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,034.68 : 2,921,021.46 = 1,428,637.70 : x
  2. Step 2: Convert to fraction form
    2,116,034.68/2,921,021.46 = 1,428,637.70/x
  3. Step 3: Cross multiply
    2,116,034.68x = 2,921,021.46 × 1,428,637.70
  4. Step 4: Simplify right side
    2,116,034.68x = 4,173,081,380,265.04
  5. Step 5: Solve for x
    x = 4,173,081,380,265.04/2,116,034.68
  6. Step 6: Final answer
    x = 1,972,123.34

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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.