Home / 342,120,909.47-472,136,812.74-193,438,836.72

Finding the Fourth Proportional to 342,120,909.47, 472,136,812.74 and 193,438,836.72

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Solution

The fourth proportional to 342,120,909.47, 472,136,812.74 and 193,438,836.72 is: 266,951,224.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,120,909.47 : 472,136,812.74 = 193,438,836.72 : x
  2. Step 2: Convert to fraction form
    342,120,909.47/472,136,812.74 = 193,438,836.72/x
  3. Step 3: Cross multiply
    342,120,909.47x = 472,136,812.74 × 193,438,836.72
  4. Step 4: Simplify right side
    342,120,909.47x = 91,329,595,829,114,080
  5. Step 5: Solve for x
    x = 91,329,595,829,114,080/342,120,909.47
  6. Step 6: Final answer
    x = 266,951,224.85

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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.