Home / 68,902,121.80-103,353,182.70-48,494,787.40

Finding the Fourth Proportional to 68,902,121.80, 103,353,182.70 and 48,494,787.40

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Solution

The fourth proportional to 68,902,121.80, 103,353,182.70 and 48,494,787.40 is: 72,742,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,902,121.80 : 103,353,182.70 = 48,494,787.40 : x
  2. Step 2: Convert to fraction form
    68,902,121.80/103,353,182.70 = 48,494,787.40/x
  3. Step 3: Cross multiply
    68,902,121.80x = 103,353,182.70 × 48,494,787.40
  4. Step 4: Simplify right side
    68,902,121.80x = 5,012,090,622,149,858
  5. Step 5: Solve for x
    x = 5,012,090,622,149,858/68,902,121.80
  6. Step 6: Final answer
    x = 72,742,181.10

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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.