Home / 13,281,446.81-18,328,965.76-7,401,089.06

Finding the Fourth Proportional to 13,281,446.81, 18,328,965.76 and 7,401,089.06

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Solution

The fourth proportional to 13,281,446.81, 18,328,965.76 and 7,401,089.06 is: 10,213,820.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281,446.81 : 18,328,965.76 = 7,401,089.06 : x
  2. Step 2: Convert to fraction form
    13,281,446.81/18,328,965.76 = 7,401,089.06/x
  3. Step 3: Cross multiply
    13,281,446.81x = 18,328,965.76 × 7,401,089.06
  4. Step 4: Simplify right side
    13,281,446.81x = 135,654,307,953,790.73
  5. Step 5: Solve for x
    x = 135,654,307,953,790.73/13,281,446.81
  6. Step 6: Final answer
    x = 10,213,820.07

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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.