Home / 20,487,066.36-28,272,093.54-11,319,643.80

Finding the Fourth Proportional to 20,487,066.36, 28,272,093.54 and 11,319,643.80

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Solution

The fourth proportional to 20,487,066.36, 28,272,093.54 and 11,319,643.80 is: 15,621,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,066.36 : 28,272,093.54 = 11,319,643.80 : x
  2. Step 2: Convert to fraction form
    20,487,066.36/28,272,093.54 = 11,319,643.80/x
  3. Step 3: Cross multiply
    20,487,066.36x = 28,272,093.54 × 11,319,643.80
  4. Step 4: Simplify right side
    20,487,066.36x = 320,030,028,353,081.06
  5. Step 5: Solve for x
    x = 320,030,028,353,081.06/20,487,066.36
  6. Step 6: Final answer
    x = 15,621,076.38

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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.