Home / 129,509,634.60-194,239,568.70-38,636,188.20

Finding the Fourth Proportional to 129,509,634.60, 194,239,568.70 and 38,636,188.20

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Solution

The fourth proportional to 129,509,634.60, 194,239,568.70 and 38,636,188.20 is: 57,946,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,509,634.60 : 194,239,568.70 = 38,636,188.20 : x
  2. Step 2: Convert to fraction form
    129,509,634.60/194,239,568.70 = 38,636,188.20/x
  3. Step 3: Cross multiply
    129,509,634.60x = 194,239,568.70 × 38,636,188.20
  4. Step 4: Simplify right side
    129,509,634.60x = 7,504,676,532,180,029
  5. Step 5: Solve for x
    x = 7,504,676,532,180,029/129,509,634.60
  6. Step 6: Final answer
    x = 57,946,858.98

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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.