Home / 120,314,571.42-166,034,319.03-65,310,465.18

Finding the Fourth Proportional to 120,314,571.42, 166,034,319.03 and 65,310,465.18

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Solution

The fourth proportional to 120,314,571.42, 166,034,319.03 and 65,310,465.18 is: 90,128,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,314,571.42 : 166,034,319.03 = 65,310,465.18 : x
  2. Step 2: Convert to fraction form
    120,314,571.42/166,034,319.03 = 65,310,465.18/x
  3. Step 3: Cross multiply
    120,314,571.42x = 166,034,319.03 × 65,310,465.18
  4. Step 4: Simplify right side
    120,314,571.42x = 10,843,778,611,693,826
  5. Step 5: Solve for x
    x = 10,843,778,611,693,826/120,314,571.42
  6. Step 6: Final answer
    x = 90,128,556.20

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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.