Home / 120,573,719.64-166,390,172.46-65,568,395.16

Finding the Fourth Proportional to 120,573,719.64, 166,390,172.46 and 65,568,395.16

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Solution

The fourth proportional to 120,573,719.64, 166,390,172.46 and 65,568,395.16 is: 90,483,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,573,719.64 : 166,390,172.46 = 65,568,395.16 : x
  2. Step 2: Convert to fraction form
    120,573,719.64/166,390,172.46 = 65,568,395.16/x
  3. Step 3: Cross multiply
    120,573,719.64x = 166,390,172.46 × 65,568,395.16
  4. Step 4: Simplify right side
    120,573,719.64x = 10,909,936,578,597,830
  5. Step 5: Solve for x
    x = 10,909,936,578,597,830/120,573,719.64
  6. Step 6: Final answer
    x = 90,483,536.64

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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.