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Finding the Fourth Proportional to 108,809,612.80, 163,303,648.80 and 107,959,307.20

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Solution

The fourth proportional to 108,809,612.80, 163,303,648.80 and 107,959,307.20 is: 162,027,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809,612.80 : 163,303,648.80 = 107,959,307.20 : x
  2. Step 2: Convert to fraction form
    108,809,612.80/163,303,648.80 = 107,959,307.20/x
  3. Step 3: Cross multiply
    108,809,612.80x = 163,303,648.80 × 107,959,307.20
  4. Step 4: Simplify right side
    108,809,612.80x = 17,630,148,787,680,114
  5. Step 5: Solve for x
    x = 17,630,148,787,680,114/108,809,612.80
  6. Step 6: Final answer
    x = 162,027,493.10

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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.