Home / 20,188,840.47-27,860,458.12-11,021,483.22

Finding the Fourth Proportional to 20,188,840.47, 27,860,458.12 and 11,021,483.22

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Solution

The fourth proportional to 20,188,840.47, 27,860,458.12 and 11,021,483.22 is: 15,209,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,840.47 : 27,860,458.12 = 11,021,483.22 : x
  2. Step 2: Convert to fraction form
    20,188,840.47/27,860,458.12 = 11,021,483.22/x
  3. Step 3: Cross multiply
    20,188,840.47x = 27,860,458.12 × 11,021,483.22
  4. Step 4: Simplify right side
    20,188,840.47x = 307,063,571,643,539.06
  5. Step 5: Solve for x
    x = 307,063,571,643,539.06/20,188,840.47
  6. Step 6: Final answer
    x = 15,209,569.47

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1.5x scale

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.