Home / 272,878,512.30-409,317,768.45-100,319,619.60

Finding the Fourth Proportional to 272,878,512.30, 409,317,768.45 and 100,319,619.60

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Solution

The fourth proportional to 272,878,512.30, 409,317,768.45 and 100,319,619.60 is: 150,479,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,878,512.30 : 409,317,768.45 = 100,319,619.60 : x
  2. Step 2: Convert to fraction form
    272,878,512.30/409,317,768.45 = 100,319,619.60/x
  3. Step 3: Cross multiply
    272,878,512.30x = 409,317,768.45 × 100,319,619.60
  4. Step 4: Simplify right side
    272,878,512.30x = 41,062,602,826,424,880
  5. Step 5: Solve for x
    x = 41,062,602,826,424,880/272,878,512.30
  6. Step 6: Final answer
    x = 150,479,429.40

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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.