Home / 13,012,143.62-17,956,538.96-7,210,913.54

Finding the Fourth Proportional to 13,012,143.62, 17,956,538.96 and 7,210,913.54

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Solution

The fourth proportional to 13,012,143.62, 17,956,538.96 and 7,210,913.54 is: 9,950,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,143.62 : 17,956,538.96 = 7,210,913.54 : x
  2. Step 2: Convert to fraction form
    13,012,143.62/17,956,538.96 = 7,210,913.54/x
  3. Step 3: Cross multiply
    13,012,143.62x = 17,956,538.96 × 7,210,913.54
  4. Step 4: Simplify right side
    13,012,143.62x = 129,483,049,918,201.53
  5. Step 5: Solve for x
    x = 129,483,049,918,201.53/13,012,143.62
  6. Step 6: Final answer
    x = 9,950,939.19

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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.