Home / 355,938,957.68-491,199,690.72-197,171,512.40

Finding the Fourth Proportional to 355,938,957.68, 491,199,690.72 and 197,171,512.40

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Solution

The fourth proportional to 355,938,957.68, 491,199,690.72 and 197,171,512.40 is: 272,098,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,938,957.68 : 491,199,690.72 = 197,171,512.40 : x
  2. Step 2: Convert to fraction form
    355,938,957.68/491,199,690.72 = 197,171,512.40/x
  3. Step 3: Cross multiply
    355,938,957.68x = 491,199,690.72 × 197,171,512.40
  4. Step 4: Simplify right side
    355,938,957.68x = 96,850,585,909,674,656
  5. Step 5: Solve for x
    x = 96,850,585,909,674,656/355,938,957.68
  6. Step 6: Final answer
    x = 272,098,863.64

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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.