Home / 355,938,916.55-491,199,634.08-197,171,471.43

Finding the Fourth Proportional to 355,938,916.55, 491,199,634.08 and 197,171,471.43

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Solution

The fourth proportional to 355,938,916.55, 491,199,634.08 and 197,171,471.43 is: 272,098,807.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,938,916.55 : 491,199,634.08 = 197,171,471.43 : x
  2. Step 2: Convert to fraction form
    355,938,916.55/491,199,634.08 = 197,171,471.43/x
  3. Step 3: Cross multiply
    355,938,916.55x = 491,199,634.08 × 197,171,471.43
  4. Step 4: Simplify right side
    355,938,916.55x = 96,850,554,617,431,168
  5. Step 5: Solve for x
    x = 96,850,554,617,431,168/355,938,916.55
  6. Step 6: Final answer
    x = 272,098,807.17

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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.