Home / 31,056,028.64-42,860,508.60-18,670,131.92

Finding the Fourth Proportional to 31,056,028.64, 42,860,508.60 and 18,670,131.92

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Solution

The fourth proportional to 31,056,028.64, 42,860,508.60 and 18,670,131.92 is: 25,766,699.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,056,028.64 : 42,860,508.60 = 18,670,131.92 : x
  2. Step 2: Convert to fraction form
    31,056,028.64/42,860,508.60 = 18,670,131.92/x
  3. Step 3: Cross multiply
    31,056,028.64x = 42,860,508.60 × 18,670,131.92
  4. Step 4: Simplify right side
    31,056,028.64x = 800,211,349,720,294.62
  5. Step 5: Solve for x
    x = 800,211,349,720,294.62/31,056,028.64
  6. Step 6: Final answer
    x = 25,766,699.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.