Home / 428,496,291.28-591,331,361.04-240,366,288.16

Finding the Fourth Proportional to 428,496,291.28, 591,331,361.04 and 240,366,288.16

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Solution

The fourth proportional to 428,496,291.28, 591,331,361.04 and 240,366,288.16 is: 331,709,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,496,291.28 : 591,331,361.04 = 240,366,288.16 : x
  2. Step 2: Convert to fraction form
    428,496,291.28/591,331,361.04 = 240,366,288.16/x
  3. Step 3: Cross multiply
    428,496,291.28x = 591,331,361.04 × 240,366,288.16
  4. Step 4: Simplify right side
    428,496,291.28x = 142,136,124,325,785,632
  5. Step 5: Solve for x
    x = 142,136,124,325,785,632/428,496,291.28
  6. Step 6: Final answer
    x = 331,709,112.12

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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.