Home / 452,290,811.80-678,436,217.70-193,532,188.90

Finding the Fourth Proportional to 452,290,811.80, 678,436,217.70 and 193,532,188.90

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Solution

The fourth proportional to 452,290,811.80, 678,436,217.70 and 193,532,188.90 is: 290,298,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,290,811.80 : 678,436,217.70 = 193,532,188.90 : x
  2. Step 2: Convert to fraction form
    452,290,811.80/678,436,217.70 = 193,532,188.90/x
  3. Step 3: Cross multiply
    452,290,811.80x = 678,436,217.70 × 193,532,188.90
  4. Step 4: Simplify right side
    452,290,811.80x = 131,299,246,240,517,936
  5. Step 5: Solve for x
    x = 131,299,246,240,517,936/452,290,811.80
  6. Step 6: Final answer
    x = 290,298,283.35

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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.