Home / 21,090,758.76-31,629,661.41-7,440,712.93

Finding the Fourth Proportional to 21,090,758.76, 31,629,661.41 and 7,440,712.93

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Solution

The fourth proportional to 21,090,758.76, 31,629,661.41 and 7,440,712.93 is: 11,158,784.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090,758.76 : 31,629,661.41 = 7,440,712.93 : x
  2. Step 2: Convert to fraction form
    21,090,758.76/31,629,661.41 = 7,440,712.93/x
  3. Step 3: Cross multiply
    21,090,758.76x = 31,629,661.41 × 7,440,712.93
  4. Step 4: Simplify right side
    21,090,758.76x = 235,347,230,692,348.78
  5. Step 5: Solve for x
    x = 235,347,230,692,348.78/21,090,758.76
  6. Step 6: Final answer
    x = 11,158,784.44

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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.