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Finding the Fourth Proportional to 66,086,445.60, 99,129,668.40 and 50,969,901.60

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Solution

The fourth proportional to 66,086,445.60, 99,129,668.40 and 50,969,901.60 is: 76,454,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,086,445.60 : 99,129,668.40 = 50,969,901.60 : x
  2. Step 2: Convert to fraction form
    66,086,445.60/99,129,668.40 = 50,969,901.60/x
  3. Step 3: Cross multiply
    66,086,445.60x = 99,129,668.40 × 50,969,901.60
  4. Step 4: Simplify right side
    66,086,445.60x = 5,052,629,443,988,630
  5. Step 5: Solve for x
    x = 5,052,629,443,988,630/66,086,445.60
  6. Step 6: Final answer
    x = 76,454,852.40

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1.5x scale

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.