Home / 285,079,476.25-393,409,677.36-154,699,284.25

Finding the Fourth Proportional to 285,079,476.25, 393,409,677.36 and 154,699,284.25

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Solution

The fourth proportional to 285,079,476.25, 393,409,677.36 and 154,699,284.25 is: 213,485,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,079,476.25 : 393,409,677.36 = 154,699,284.25 : x
  2. Step 2: Convert to fraction form
    285,079,476.25/393,409,677.36 = 154,699,284.25/x
  3. Step 3: Cross multiply
    285,079,476.25x = 393,409,677.36 × 154,699,284.25
  4. Step 4: Simplify right side
    285,079,476.25x = 60,860,195,504,615,432
  5. Step 5: Solve for x
    x = 60,860,195,504,615,432/285,079,476.25
  6. Step 6: Final answer
    x = 213,485,012.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.