Home / 393,198,297.46-542,626,683.32-214,591,965.65

Finding the Fourth Proportional to 393,198,297.46, 542,626,683.32 and 214,591,965.65

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Solution

The fourth proportional to 393,198,297.46, 542,626,683.32 and 214,591,965.65 is: 296,144,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,198,297.46 : 542,626,683.32 = 214,591,965.65 : x
  2. Step 2: Convert to fraction form
    393,198,297.46/542,626,683.32 = 214,591,965.65/x
  3. Step 3: Cross multiply
    393,198,297.46x = 542,626,683.32 × 214,591,965.65
  4. Step 4: Simplify right side
    393,198,297.46x = 116,443,326,587,637,072
  5. Step 5: Solve for x
    x = 116,443,326,587,637,072/393,198,297.46
  6. Step 6: Final answer
    x = 296,144,025.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.