Home / 7,138,971.26-9,842,265.16-5,673,772.40

Finding the Fourth Proportional to 7,138,971.26, 9,842,265.16 and 5,673,772.40

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Solution

The fourth proportional to 7,138,971.26, 9,842,265.16 and 5,673,772.40 is: 7,822,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,971.26 : 9,842,265.16 = 5,673,772.40 : x
  2. Step 2: Convert to fraction form
    7,138,971.26/9,842,265.16 = 5,673,772.40/x
  3. Step 3: Cross multiply
    7,138,971.26x = 9,842,265.16 × 5,673,772.40
  4. Step 4: Simplify right side
    7,138,971.26x = 55,842,772,418,289.59
  5. Step 5: Solve for x
    x = 55,842,772,418,289.59/7,138,971.26
  6. Step 6: Final answer
    x = 7,822,243.62

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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.