Home / 132,858,392.40-199,287,588.60-81,574,117.20

Finding the Fourth Proportional to 132,858,392.40, 199,287,588.60 and 81,574,117.20

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Solution

The fourth proportional to 132,858,392.40, 199,287,588.60 and 81,574,117.20 is: 122,361,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858,392.40 : 199,287,588.60 = 81,574,117.20 : x
  2. Step 2: Convert to fraction form
    132,858,392.40/199,287,588.60 = 81,574,117.20/x
  3. Step 3: Cross multiply
    132,858,392.40x = 199,287,588.60 × 81,574,117.20
  4. Step 4: Simplify right side
    132,858,392.40x = 16,256,709,108,961,784
  5. Step 5: Solve for x
    x = 16,256,709,108,961,784/132,858,392.40
  6. Step 6: Final answer
    x = 122,361,175.80

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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.