Home / 308,409,460.56-462,615,765.78-103,939,307.28

Finding the Fourth Proportional to 308,409,460.56, 462,615,765.78 and 103,939,307.28

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Solution

The fourth proportional to 308,409,460.56, 462,615,765.78 and 103,939,307.28 is: 155,909,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,409,460.56 : 462,615,765.78 = 103,939,307.28 : x
  2. Step 2: Convert to fraction form
    308,409,460.56/462,615,765.78 = 103,939,307.28/x
  3. Step 3: Cross multiply
    308,409,460.56x = 462,615,765.78 × 103,939,307.28
  4. Step 4: Simplify right side
    308,409,460.56x = 48,083,962,231,979,928
  5. Step 5: Solve for x
    x = 48,083,962,231,979,928/308,409,460.56
  6. Step 6: Final answer
    x = 155,909,491.70

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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.