Home / 21,272,365.80-31,909,197.78-8,317,999.08

Finding the Fourth Proportional to 21,272,365.80, 31,909,197.78 and 8,317,999.08

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Solution

The fourth proportional to 21,272,365.80, 31,909,197.78 and 8,317,999.08 is: 12,477,252.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272,365.80 : 31,909,197.78 = 8,317,999.08 : x
  2. Step 2: Convert to fraction form
    21,272,365.80/31,909,197.78 = 8,317,999.08/x
  3. Step 3: Cross multiply
    21,272,365.80x = 31,909,197.78 × 8,317,999.08
  4. Step 4: Simplify right side
    21,272,365.80x = 265,420,677,777,578.06
  5. Step 5: Solve for x
    x = 265,420,677,777,578.06/21,272,365.80
  6. Step 6: Final answer
    x = 12,477,252.43

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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.