Home / 13,147,763.64-18,144,614.70-7,346,686.20

Finding the Fourth Proportional to 13,147,763.64, 18,144,614.70 and 7,346,686.20

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Solution

The fourth proportional to 13,147,763.64, 18,144,614.70 and 7,346,686.20 is: 10,138,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,763.64 : 18,144,614.70 = 7,346,686.20 : x
  2. Step 2: Convert to fraction form
    13,147,763.64/18,144,614.70 = 7,346,686.20/x
  3. Step 3: Cross multiply
    13,147,763.64x = 18,144,614.70 × 7,346,686.20
  4. Step 4: Simplify right side
    13,147,763.64x = 133,302,790,420,807.14
  5. Step 5: Solve for x
    x = 133,302,790,420,807.14/13,147,763.64
  6. Step 6: Final answer
    x = 10,138,818.59

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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.