Home / 268,775,919.45-403,238,528.78-115,495,407.45

Finding the Fourth Proportional to 268,775,919.45, 403,238,528.78 and 115,495,407.45

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Solution

The fourth proportional to 268,775,919.45, 403,238,528.78 and 115,495,407.45 is: 173,275,188.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,775,919.45 : 403,238,528.78 = 115,495,407.45 : x
  2. Step 2: Convert to fraction form
    268,775,919.45/403,238,528.78 = 115,495,407.45/x
  3. Step 3: Cross multiply
    268,775,919.45x = 403,238,528.78 × 115,495,407.45
  4. Step 4: Simplify right side
    268,775,919.45x = 46,572,198,180,407,176
  5. Step 5: Solve for x
    x = 46,572,198,180,407,176/268,775,919.45
  6. Step 6: Final answer
    x = 173,275,188.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.