Home / 112,992,022.60-169,488,033.90-85,782,243.40

Finding the Fourth Proportional to 112,992,022.60, 169,488,033.90 and 85,782,243.40

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Solution

The fourth proportional to 112,992,022.60, 169,488,033.90 and 85,782,243.40 is: 128,673,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,992,022.60 : 169,488,033.90 = 85,782,243.40 : x
  2. Step 2: Convert to fraction form
    112,992,022.60/169,488,033.90 = 85,782,243.40/x
  3. Step 3: Cross multiply
    112,992,022.60x = 169,488,033.90 × 85,782,243.40
  4. Step 4: Simplify right side
    112,992,022.60x = 14,539,063,777,397,252
  5. Step 5: Solve for x
    x = 14,539,063,777,397,252/112,992,022.60
  6. Step 6: Final answer
    x = 128,673,365.10

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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.