Home / 260,819,261.60-391,228,892.40-168,986,256.80

Finding the Fourth Proportional to 260,819,261.60, 391,228,892.40 and 168,986,256.80

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Solution

The fourth proportional to 260,819,261.60, 391,228,892.40 and 168,986,256.80 is: 253,479,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,819,261.60 : 391,228,892.40 = 168,986,256.80 : x
  2. Step 2: Convert to fraction form
    260,819,261.60/391,228,892.40 = 168,986,256.80/x
  3. Step 3: Cross multiply
    260,819,261.60x = 391,228,892.40 × 168,986,256.80
  4. Step 4: Simplify right side
    260,819,261.60x = 66,112,306,078,685,968
  5. Step 5: Solve for x
    x = 66,112,306,078,685,968/260,819,261.60
  6. Step 6: Final answer
    x = 253,479,385.20

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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.