Home / 421,787,385-632,782,090.17-176,007,297.74

Finding the Fourth Proportional to 421,787,385, 632,782,090.17 and 176,007,297.74

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Solution

The fourth proportional to 421,787,385, 632,782,090.17 and 176,007,297.74 is: 264,053,098.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,787,385 : 632,782,090.17 = 176,007,297.74 : x
  2. Step 2: Convert to fraction form
    421,787,385/632,782,090.17 = 176,007,297.74/x
  3. Step 3: Cross multiply
    421,787,385x = 632,782,090.17 × 176,007,297.74
  4. Step 4: Simplify right side
    421,787,385x = 111,374,265,745,926,816
  5. Step 5: Solve for x
    x = 111,374,265,745,926,816/421,787,385
  6. Step 6: Final answer
    x = 264,053,098.09

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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.