Home / 13,023,667.20-17,972,709.12-7,222,985.04

Finding the Fourth Proportional to 13,023,667.20, 17,972,709.12 and 7,222,985.04

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Solution

The fourth proportional to 13,023,667.20, 17,972,709.12 and 7,222,985.04 is: 9,967,746.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023,667.20 : 17,972,709.12 = 7,222,985.04 : x
  2. Step 2: Convert to fraction form
    13,023,667.20/17,972,709.12 = 7,222,985.04/x
  3. Step 3: Cross multiply
    13,023,667.20x = 17,972,709.12 × 7,222,985.04
  4. Step 4: Simplify right side
    13,023,667.20x = 129,816,609,102,031.58
  5. Step 5: Solve for x
    x = 129,816,609,102,031.58/13,023,667.20
  6. Step 6: Final answer
    x = 9,967,746.19

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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.