Home / 342,121,004.10-472,136,943.15-193,438,931.22

Finding the Fourth Proportional to 342,121,004.10, 472,136,943.15 and 193,438,931.22

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Solution

The fourth proportional to 342,121,004.10, 472,136,943.15 and 193,438,931.22 is: 266,951,355.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,121,004.10 : 472,136,943.15 = 193,438,931.22 : x
  2. Step 2: Convert to fraction form
    342,121,004.10/472,136,943.15 = 193,438,931.22/x
  3. Step 3: Cross multiply
    342,121,004.10x = 472,136,943.15 × 193,438,931.22
  4. Step 4: Simplify right side
    342,121,004.10x = 91,329,665,672,413,888
  5. Step 5: Solve for x
    x = 91,329,665,672,413,888/342,121,004.10
  6. Step 6: Final answer
    x = 266,951,355.16

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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.