Home / 15,148,903.79-20,906,003.10-8,959,256.39

Finding the Fourth Proportional to 15,148,903.79, 20,906,003.10 and 8,959,256.39

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Solution

The fourth proportional to 15,148,903.79, 20,906,003.10 and 8,959,256.39 is: 12,364,078.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,148,903.79 : 20,906,003.10 = 8,959,256.39 : x
  2. Step 2: Convert to fraction form
    15,148,903.79/20,906,003.10 = 8,959,256.39/x
  3. Step 3: Cross multiply
    15,148,903.79x = 20,906,003.10 × 8,959,256.39
  4. Step 4: Simplify right side
    15,148,903.79x = 187,302,241,758,504.81
  5. Step 5: Solve for x
    x = 187,302,241,758,504.81/15,148,903.79
  6. Step 6: Final answer
    x = 12,364,078.91

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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.