Home / 145,164,975.40-217,810,448.70-73,361,391.40

Finding the Fourth Proportional to 145,164,975.40, 217,810,448.70 and 73,361,391.40

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Solution

The fourth proportional to 145,164,975.40, 217,810,448.70 and 73,361,391.40 is: 110,073,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164,975.40 : 217,810,448.70 = 73,361,391.40 : x
  2. Step 2: Convert to fraction form
    145,164,975.40/217,810,448.70 = 73,361,391.40/x
  3. Step 3: Cross multiply
    145,164,975.40x = 217,810,448.70 × 73,361,391.40
  4. Step 4: Simplify right side
    145,164,975.40x = 15,978,877,578,090,322
  5. Step 5: Solve for x
    x = 15,978,877,578,090,322/145,164,975.40
  6. Step 6: Final answer
    x = 110,073,917.86

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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.