Home / 20,188,840.84-27,860,458.63-11,021,483.59

Finding the Fourth Proportional to 20,188,840.84, 27,860,458.63 and 11,021,483.59

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Solution

The fourth proportional to 20,188,840.84, 27,860,458.63 and 11,021,483.59 is: 15,209,569.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,840.84 : 27,860,458.63 = 11,021,483.59 : x
  2. Step 2: Convert to fraction form
    20,188,840.84/27,860,458.63 = 11,021,483.59/x
  3. Step 3: Cross multiply
    20,188,840.84x = 27,860,458.63 × 11,021,483.59
  4. Step 4: Simplify right side
    20,188,840.84x = 307,063,587,600,418.88
  5. Step 5: Solve for x
    x = 307,063,587,600,418.88/20,188,840.84
  6. Step 6: Final answer
    x = 15,209,569.98

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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.