Home / 131,492,995.20-181,465,682.40-72,754,704.72

Finding the Fourth Proportional to 131,492,995.20, 181,465,682.40 and 72,754,704.72

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Solution

The fourth proportional to 131,492,995.20, 181,465,682.40 and 72,754,704.72 is: 100,404,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,492,995.20 : 181,465,682.40 = 72,754,704.72 : x
  2. Step 2: Convert to fraction form
    131,492,995.20/181,465,682.40 = 72,754,704.72/x
  3. Step 3: Cross multiply
    131,492,995.20x = 181,465,682.40 × 72,754,704.72
  4. Step 4: Simplify right side
    131,492,995.20x = 13,202,482,139,825,302
  5. Step 5: Solve for x
    x = 13,202,482,139,825,302/131,492,995.20
  6. Step 6: Final answer
    x = 100,404,452.11

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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.