Home / 212,584,823.40-318,877,235.10-161,188,573.80

Finding the Fourth Proportional to 212,584,823.40, 318,877,235.10 and 161,188,573.80

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Solution

The fourth proportional to 212,584,823.40, 318,877,235.10 and 161,188,573.80 is: 241,782,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,584,823.40 : 318,877,235.10 = 161,188,573.80 : x
  2. Step 2: Convert to fraction form
    212,584,823.40/318,877,235.10 = 161,188,573.80/x
  3. Step 3: Cross multiply
    212,584,823.40x = 318,877,235.10 × 161,188,573.80
  4. Step 4: Simplify right side
    212,584,823.40x = 51,399,366,743,056,312
  5. Step 5: Solve for x
    x = 51,399,366,743,056,312/212,584,823.40
  6. Step 6: Final answer
    x = 241,782,860.70

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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.