Home / 213,507,831.90-320,261,747.85-127,343,531.10

Finding the Fourth Proportional to 213,507,831.90, 320,261,747.85 and 127,343,531.10

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Solution

The fourth proportional to 213,507,831.90, 320,261,747.85 and 127,343,531.10 is: 191,015,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,507,831.90 : 320,261,747.85 = 127,343,531.10 : x
  2. Step 2: Convert to fraction form
    213,507,831.90/320,261,747.85 = 127,343,531.10/x
  3. Step 3: Cross multiply
    213,507,831.90x = 320,261,747.85 × 127,343,531.10
  4. Step 4: Simplify right side
    213,507,831.90x = 40,783,261,847,476,832
  5. Step 5: Solve for x
    x = 40,783,261,847,476,832/213,507,831.90
  6. Step 6: Final answer
    x = 191,015,296.65

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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.