Home / 189,574,286.40-284,361,429.60-132,131,419.20

Finding the Fourth Proportional to 189,574,286.40, 284,361,429.60 and 132,131,419.20

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Solution

The fourth proportional to 189,574,286.40, 284,361,429.60 and 132,131,419.20 is: 198,197,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,574,286.40 : 284,361,429.60 = 132,131,419.20 : x
  2. Step 2: Convert to fraction form
    189,574,286.40/284,361,429.60 = 132,131,419.20/x
  3. Step 3: Cross multiply
    189,574,286.40x = 284,361,429.60 × 132,131,419.20
  4. Step 4: Simplify right side
    189,574,286.40x = 37,573,079,258,788,896
  5. Step 5: Solve for x
    x = 37,573,079,258,788,896/189,574,286.40
  6. Step 6: Final answer
    x = 198,197,128.80

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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.