Home / 308,409,442.06-462,615,738-103,939,288.78

Finding the Fourth Proportional to 308,409,442.06, 462,615,738 and 103,939,288.78

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Solution

The fourth proportional to 308,409,442.06, 462,615,738 and 103,939,288.78 is: 155,909,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,409,442.06 : 462,615,738 = 103,939,288.78 : x
  2. Step 2: Convert to fraction form
    308,409,442.06/462,615,738 = 103,939,288.78/x
  3. Step 3: Cross multiply
    308,409,442.06x = 462,615,738 × 103,939,288.78
  4. Step 4: Simplify right side
    308,409,442.06x = 48,083,950,786,154,824
  5. Step 5: Solve for x
    x = 48,083,950,786,154,824/308,409,442.06
  6. Step 6: Final answer
    x = 155,909,463.94

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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.