Home / 260,726,743.60-391,090,115.40-218,636,616.40

Finding the Fourth Proportional to 260,726,743.60, 391,090,115.40 and 218,636,616.40

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Solution

The fourth proportional to 260,726,743.60, 391,090,115.40 and 218,636,616.40 is: 327,954,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,726,743.60 : 391,090,115.40 = 218,636,616.40 : x
  2. Step 2: Convert to fraction form
    260,726,743.60/391,090,115.40 = 218,636,616.40/x
  3. Step 3: Cross multiply
    260,726,743.60x = 391,090,115.40 × 218,636,616.40
  4. Step 4: Simplify right side
    260,726,743.60x = 85,506,619,538,541,536
  5. Step 5: Solve for x
    x = 85,506,619,538,541,536/260,726,743.60
  6. Step 6: Final answer
    x = 327,954,924.60

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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.