Home / 342,120,913.47-472,136,818.26-193,438,840.72

Finding the Fourth Proportional to 342,120,913.47, 472,136,818.26 and 193,438,840.72

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Solution

The fourth proportional to 342,120,913.47, 472,136,818.26 and 193,438,840.72 is: 266,951,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,120,913.47 : 472,136,818.26 = 193,438,840.72 : x
  2. Step 2: Convert to fraction form
    342,120,913.47/472,136,818.26 = 193,438,840.72/x
  3. Step 3: Cross multiply
    342,120,913.47x = 472,136,818.26 × 193,438,840.72
  4. Step 4: Simplify right side
    342,120,913.47x = 91,329,598,785,443,728
  5. Step 5: Solve for x
    x = 91,329,598,785,443,728/342,120,913.47
  6. Step 6: Final answer
    x = 266,951,230.37

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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.