Home / 129,872,091.40-194,808,137.10-80,554,366.60

Finding the Fourth Proportional to 129,872,091.40, 194,808,137.10 and 80,554,366.60

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Solution

The fourth proportional to 129,872,091.40, 194,808,137.10 and 80,554,366.60 is: 120,831,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,872,091.40 : 194,808,137.10 = 80,554,366.60 : x
  2. Step 2: Convert to fraction form
    129,872,091.40/194,808,137.10 = 80,554,366.60/x
  3. Step 3: Cross multiply
    129,872,091.40x = 194,808,137.10 × 80,554,366.60
  4. Step 4: Simplify right side
    129,872,091.40x = 15,692,646,092,616,460
  5. Step 5: Solve for x
    x = 15,692,646,092,616,460/129,872,091.40
  6. Step 6: Final answer
    x = 120,831,549.90

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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.