Home / 353,735,439.60-488,155,917.72-205,085,449.20

Finding the Fourth Proportional to 353,735,439.60, 488,155,917.72 and 205,085,449.20

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Solution

The fourth proportional to 353,735,439.60, 488,155,917.72 and 205,085,449.20 is: 283,018,506.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,735,439.60 : 488,155,917.72 = 205,085,449.20 : x
  2. Step 2: Convert to fraction form
    353,735,439.60/488,155,917.72 = 205,085,449.20/x
  3. Step 3: Cross multiply
    353,735,439.60x = 488,155,917.72 × 205,085,449.20
  4. Step 4: Simplify right side
    353,735,439.60x = 100,113,675,665,244,432
  5. Step 5: Solve for x
    x = 100,113,675,665,244,432/353,735,439.60
  6. Step 6: Final answer
    x = 283,018,506.09

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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.