Home / 421,292,145.60-631,940,186.70-148,662,912.60

Finding the Fourth Proportional to 421,292,145.60, 631,940,186.70 and 148,662,912.60

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Solution

The fourth proportional to 421,292,145.60, 631,940,186.70 and 148,662,912.60 is: 222,995,063.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,292,145.60 : 631,940,186.70 = 148,662,912.60 : x
  2. Step 2: Convert to fraction form
    421,292,145.60/631,940,186.70 = 148,662,912.60/x
  3. Step 3: Cross multiply
    421,292,145.60x = 631,940,186.70 × 148,662,912.60
  4. Step 4: Simplify right side
    421,292,145.60x = 93,946,068,743,809,792
  5. Step 5: Solve for x
    x = 93,946,068,743,809,792/421,292,145.60
  6. Step 6: Final answer
    x = 222,995,063.46

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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.