Home / 81,640,011.60-122,292,055.80-41,273,240.40

Finding the Fourth Proportional to 81,640,011.60, 122,292,055.80 and 41,273,240.40

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Solution

The fourth proportional to 81,640,011.60, 122,292,055.80 and 41,273,240.40 is: 61,824,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,640,011.60 : 122,292,055.80 = 41,273,240.40 : x
  2. Step 2: Convert to fraction form
    81,640,011.60/122,292,055.80 = 41,273,240.40/x
  3. Step 3: Cross multiply
    81,640,011.60x = 122,292,055.80 × 41,273,240.40
  4. Step 4: Simplify right side
    81,640,011.60x = 5,047,389,418,043,614
  5. Step 5: Solve for x
    x = 5,047,389,418,043,614/81,640,011.60
  6. Step 6: Final answer
    x = 61,824,947.34

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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.