Home / 81,551,510.70-122,327,266.05-45,271,805.10

Finding the Fourth Proportional to 81,551,510.70, 122,327,266.05 and 45,271,805.10

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Solution

The fourth proportional to 81,551,510.70, 122,327,266.05 and 45,271,805.10 is: 67,907,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,551,510.70 : 122,327,266.05 = 45,271,805.10 : x
  2. Step 2: Convert to fraction form
    81,551,510.70/122,327,266.05 = 45,271,805.10/x
  3. Step 3: Cross multiply
    81,551,510.70x = 122,327,266.05 × 45,271,805.10
  4. Step 4: Simplify right side
    81,551,510.70x = 5,537,976,147,031,447
  5. Step 5: Solve for x
    x = 5,537,976,147,031,447/81,551,510.70
  6. Step 6: Final answer
    x = 67,907,707.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.