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Finding the Fourth Proportional to 108,865,468.80, 163,372,852.80 and 48,324,643.20

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Solution

The fourth proportional to 108,865,468.80, 163,372,852.80 and 48,324,643.20 is: 72,520,101.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,865,468.80 : 163,372,852.80 = 48,324,643.20 : x
  2. Step 2: Convert to fraction form
    108,865,468.80/163,372,852.80 = 48,324,643.20/x
  3. Step 3: Cross multiply
    108,865,468.80x = 163,372,852.80 × 48,324,643.20
  4. Step 4: Simplify right side
    108,865,468.80x = 7,894,934,820,126,122
  5. Step 5: Solve for x
    x = 7,894,934,820,126,122/108,865,468.80
  6. Step 6: Final answer
    x = 72,520,101.25

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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.