Home / 3,918,019.23-5,406,569.91-2,198,807.59

Finding the Fourth Proportional to 3,918,019.23, 5,406,569.91 and 2,198,807.59

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Solution

The fourth proportional to 3,918,019.23, 5,406,569.91 and 2,198,807.59 is: 3,034,188.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,019.23 : 5,406,569.91 = 2,198,807.59 : x
  2. Step 2: Convert to fraction form
    3,918,019.23/5,406,569.91 = 2,198,807.59/x
  3. Step 3: Cross multiply
    3,918,019.23x = 5,406,569.91 × 2,198,807.59
  4. Step 4: Simplify right side
    3,918,019.23x = 11,888,006,953,973.62
  5. Step 5: Solve for x
    x = 11,888,006,953,973.62/3,918,019.23
  6. Step 6: Final answer
    x = 3,034,188.01

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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.