Home / 13,581,989.45-18,748,020.68-8,075,351.11

Finding the Fourth Proportional to 13,581,989.45, 18,748,020.68 and 8,075,351.11

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Solution

The fourth proportional to 13,581,989.45, 18,748,020.68 and 8,075,351.11 is: 11,146,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581,989.45 : 18,748,020.68 = 8,075,351.11 : x
  2. Step 2: Convert to fraction form
    13,581,989.45/18,748,020.68 = 8,075,351.11/x
  3. Step 3: Cross multiply
    13,581,989.45x = 18,748,020.68 × 8,075,351.11
  4. Step 4: Simplify right side
    13,581,989.45x = 151,396,849,586,729.25
  5. Step 5: Solve for x
    x = 151,396,849,586,729.25/13,581,989.45
  6. Step 6: Final answer
    x = 11,146,883.17

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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.