Home / 15,215,296.05-20,999,261.75-9,415,946.07

Finding the Fourth Proportional to 15,215,296.05, 20,999,261.75 and 9,415,946.07

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Solution

The fourth proportional to 15,215,296.05, 20,999,261.75 and 9,415,946.07 is: 12,995,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215,296.05 : 20,999,261.75 = 9,415,946.07 : x
  2. Step 2: Convert to fraction form
    15,215,296.05/20,999,261.75 = 9,415,946.07/x
  3. Step 3: Cross multiply
    15,215,296.05x = 20,999,261.75 × 9,415,946.07
  4. Step 4: Simplify right side
    15,215,296.05x = 197,727,916,100,734.09
  5. Step 5: Solve for x
    x = 197,727,916,100,734.09/15,215,296.05
  6. Step 6: Final answer
    x = 12,995,338.08

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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.