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Finding the Fourth Proportional to 108,907,315.20, 163,360,972.80 and 84,248,452.80

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Solution

The fourth proportional to 108,907,315.20, 163,360,972.80 and 84,248,452.80 is: 126,372,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,907,315.20 : 163,360,972.80 = 84,248,452.80 : x
  2. Step 2: Convert to fraction form
    108,907,315.20/163,360,972.80 = 84,248,452.80/x
  3. Step 3: Cross multiply
    108,907,315.20x = 163,360,972.80 × 84,248,452.80
  4. Step 4: Simplify right side
    108,907,315.20x = 13,762,909,206,302,884
  5. Step 5: Solve for x
    x = 13,762,909,206,302,884/108,907,315.20
  6. Step 6: Final answer
    x = 126,372,679.20

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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.