Home / 5,160,618.34-7,121,836.10-2,837,687.78

Finding the Fourth Proportional to 5,160,618.34, 7,121,836.10 and 2,837,687.78

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Solution

The fourth proportional to 5,160,618.34, 7,121,836.10 and 2,837,687.78 is: 3,916,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160,618.34 : 7,121,836.10 = 2,837,687.78 : x
  2. Step 2: Convert to fraction form
    5,160,618.34/7,121,836.10 = 2,837,687.78/x
  3. Step 3: Cross multiply
    5,160,618.34x = 7,121,836.10 × 2,837,687.78
  4. Step 4: Simplify right side
    5,160,618.34x = 20,209,547,257,944.42
  5. Step 5: Solve for x
    x = 20,209,547,257,944.42/5,160,618.34
  6. Step 6: Final answer
    x = 3,916,109.65

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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.