Home / 260,726,729.10-391,090,093.65-218,636,601.90

Finding the Fourth Proportional to 260,726,729.10, 391,090,093.65 and 218,636,601.90

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Solution

The fourth proportional to 260,726,729.10, 391,090,093.65 and 218,636,601.90 is: 327,954,902.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,726,729.10 : 391,090,093.65 = 218,636,601.90 : x
  2. Step 2: Convert to fraction form
    260,726,729.10/391,090,093.65 = 218,636,601.90/x
  3. Step 3: Cross multiply
    260,726,729.10x = 391,090,093.65 × 218,636,601.90
  4. Step 4: Simplify right side
    260,726,729.10x = 85,506,609,112,388,768
  5. Step 5: Solve for x
    x = 85,506,609,112,388,768/260,726,729.10
  6. Step 6: Final answer
    x = 327,954,902.85

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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.