Home / 260,686,903.60-391,254,304.20-115,344,132.40

Finding the Fourth Proportional to 260,686,903.60, 391,254,304.20 and 115,344,132.40

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Solution

The fourth proportional to 260,686,903.60, 391,254,304.20 and 115,344,132.40 is: 173,115,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,686,903.60 : 391,254,304.20 = 115,344,132.40 : x
  2. Step 2: Convert to fraction form
    260,686,903.60/391,254,304.20 = 115,344,132.40/x
  3. Step 3: Cross multiply
    260,686,903.60x = 391,254,304.20 × 115,344,132.40
  4. Step 4: Simplify right side
    260,686,903.60x = 45,128,888,265,714,680
  5. Step 5: Solve for x
    x = 45,128,888,265,714,680/260,686,903.60
  6. Step 6: Final answer
    x = 173,115,287.51

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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.