Home / 217,158,381.80-325,784,811.90-71,567,167.40

Finding the Fourth Proportional to 217,158,381.80, 325,784,811.90 and 71,567,167.40

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Solution

The fourth proportional to 217,158,381.80, 325,784,811.90 and 71,567,167.40 is: 107,366,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,158,381.80 : 325,784,811.90 = 71,567,167.40 : x
  2. Step 2: Convert to fraction form
    217,158,381.80/325,784,811.90 = 71,567,167.40/x
  3. Step 3: Cross multiply
    217,158,381.80x = 325,784,811.90 × 71,567,167.40
  4. Step 4: Simplify right side
    217,158,381.80x = 23,315,496,169,624,812
  5. Step 5: Solve for x
    x = 23,315,496,169,624,812/217,158,381.80
  6. Step 6: Final answer
    x = 107,366,319.35

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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.