Home / 308,515,941.54-462,776,624.19-78,485,269.50

Finding the Fourth Proportional to 308,515,941.54, 462,776,624.19 and 78,485,269.50

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Solution

The fourth proportional to 308,515,941.54, 462,776,624.19 and 78,485,269.50 is: 117,728,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,515,941.54 : 462,776,624.19 = 78,485,269.50 : x
  2. Step 2: Convert to fraction form
    308,515,941.54/462,776,624.19 = 78,485,269.50/x
  3. Step 3: Cross multiply
    308,515,941.54x = 462,776,624.19 × 78,485,269.50
  4. Step 4: Simplify right side
    308,515,941.54x = 36,321,148,067,852,368
  5. Step 5: Solve for x
    x = 36,321,148,067,852,368/308,515,941.54
  6. Step 6: Final answer
    x = 117,728,594.14

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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.