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Finding the Fourth Proportional to 99,662,706.20, 149,494,059.30 and 45,914,994.20

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Solution

The fourth proportional to 99,662,706.20, 149,494,059.30 and 45,914,994.20 is: 68,872,491.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662,706.20 : 149,494,059.30 = 45,914,994.20 : x
  2. Step 2: Convert to fraction form
    99,662,706.20/149,494,059.30 = 45,914,994.20/x
  3. Step 3: Cross multiply
    99,662,706.20x = 149,494,059.30 × 45,914,994.20
  4. Step 4: Simplify right side
    99,662,706.20x = 6,864,018,865,693,957
  5. Step 5: Solve for x
    x = 6,864,018,865,693,957/99,662,706.20
  6. Step 6: Final answer
    x = 68,872,491.30

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Similar ratio
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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.