Home / 260,815,539.60-391,223,309.40-168,982,534.80

Finding the Fourth Proportional to 260,815,539.60, 391,223,309.40 and 168,982,534.80

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Solution

The fourth proportional to 260,815,539.60, 391,223,309.40 and 168,982,534.80 is: 253,473,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,815,539.60 : 391,223,309.40 = 168,982,534.80 : x
  2. Step 2: Convert to fraction form
    260,815,539.60/391,223,309.40 = 168,982,534.80/x
  3. Step 3: Cross multiply
    260,815,539.60x = 391,223,309.40 × 168,982,534.80
  4. Step 4: Simplify right side
    260,815,539.60x = 66,109,906,495,256,664
  5. Step 5: Solve for x
    x = 66,109,906,495,256,664/260,815,539.60
  6. Step 6: Final answer
    x = 253,473,802.20

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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.