Home / 15,215,296.43-20,999,262.27-9,415,946.45

Finding the Fourth Proportional to 15,215,296.43, 20,999,262.27 and 9,415,946.45

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Solution

The fourth proportional to 15,215,296.43, 20,999,262.27 and 9,415,946.45 is: 12,995,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,215,296.43 : 20,999,262.27 = 9,415,946.45 : x
  2. Step 2: Convert to fraction form
    15,215,296.43/20,999,262.27 = 9,415,946.45/x
  3. Step 3: Cross multiply
    15,215,296.43x = 20,999,262.27 × 9,415,946.45
  4. Step 4: Simplify right side
    15,215,296.43x = 197,727,928,871,749.41
  5. Step 5: Solve for x
    x = 197,727,928,871,749.41/15,215,296.43
  6. Step 6: Final answer
    x = 12,995,338.60

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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.