Home / 308,409,440.56-462,615,735.75-103,939,287.28

Finding the Fourth Proportional to 308,409,440.56, 462,615,735.75 and 103,939,287.28

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Solution

The fourth proportional to 308,409,440.56, 462,615,735.75 and 103,939,287.28 is: 155,909,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,409,440.56 : 462,615,735.75 = 103,939,287.28 : x
  2. Step 2: Convert to fraction form
    308,409,440.56/462,615,735.75 = 103,939,287.28/x
  3. Step 3: Cross multiply
    308,409,440.56x = 462,615,735.75 × 103,939,287.28
  4. Step 4: Simplify right side
    308,409,440.56x = 48,083,949,858,367,816
  5. Step 5: Solve for x
    x = 48,083,949,858,367,816/308,409,440.56
  6. Step 6: Final answer
    x = 155,909,461.69

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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.