Home / 81,639,975.60-122,292,001.80-41,273,204.40

Finding the Fourth Proportional to 81,639,975.60, 122,292,001.80 and 41,273,204.40

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Solution

The fourth proportional to 81,639,975.60, 122,292,001.80 and 41,273,204.40 is: 61,824,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,639,975.60 : 122,292,001.80 = 41,273,204.40 : x
  2. Step 2: Convert to fraction form
    81,639,975.60/122,292,001.80 = 41,273,204.40/x
  3. Step 3: Cross multiply
    81,639,975.60x = 122,292,001.80 × 41,273,204.40
  4. Step 4: Simplify right side
    81,639,975.60x = 5,047,382,786,776,568
  5. Step 5: Solve for x
    x = 5,047,382,786,776,568/81,639,975.60
  6. Step 6: Final answer
    x = 61,824,893.38

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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.