Home / 117,689,395.12-162,397,256.04-65,465,234.80

Finding the Fourth Proportional to 117,689,395.12, 162,397,256.04 and 65,465,234.80

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Solution

The fourth proportional to 117,689,395.12, 162,397,256.04 and 65,465,234.80 is: 90,334,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,689,395.12 : 162,397,256.04 = 65,465,234.80 : x
  2. Step 2: Convert to fraction form
    117,689,395.12/162,397,256.04 = 65,465,234.80/x
  3. Step 3: Cross multiply
    117,689,395.12x = 162,397,256.04 × 65,465,234.80
  4. Step 4: Simplify right side
    117,689,395.12x = 10,631,374,497,534,318
  5. Step 5: Solve for x
    x = 10,631,374,497,534,318/117,689,395.12
  6. Step 6: Final answer
    x = 90,334,175.71

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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.