Home / 102,728,669.82-154,145,982.78-48,146,800.50

Finding the Fourth Proportional to 102,728,669.82, 154,145,982.78 and 48,146,800.50

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Solution

The fourth proportional to 102,728,669.82, 154,145,982.78 and 48,146,800.50 is: 72,245,030.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,728,669.82 : 154,145,982.78 = 48,146,800.50 : x
  2. Step 2: Convert to fraction form
    102,728,669.82/154,145,982.78 = 48,146,800.50/x
  3. Step 3: Cross multiply
    102,728,669.82x = 154,145,982.78 × 48,146,800.50
  4. Step 4: Simplify right side
    102,728,669.82x = 7,421,635,880,785,095
  5. Step 5: Solve for x
    x = 7,421,635,880,785,095/102,728,669.82
  6. Step 6: Final answer
    x = 72,245,030.47

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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.