Home / 81,945,461.60-122,918,192.40-41,130,792.80

Finding the Fourth Proportional to 81,945,461.60, 122,918,192.40 and 41,130,792.80

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Solution

The fourth proportional to 81,945,461.60, 122,918,192.40 and 41,130,792.80 is: 61,696,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,945,461.60 : 122,918,192.40 = 41,130,792.80 : x
  2. Step 2: Convert to fraction form
    81,945,461.60/122,918,192.40 = 41,130,792.80/x
  3. Step 3: Cross multiply
    81,945,461.60x = 122,918,192.40 × 41,130,792.80
  4. Step 4: Simplify right side
    81,945,461.60x = 5,055,722,702,954,935
  5. Step 5: Solve for x
    x = 5,055,722,702,954,935/81,945,461.60
  6. Step 6: Final answer
    x = 61,696,189.20

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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.