Home / 278,683,371.64-417,791,223.42-123,212,078.56

Finding the Fourth Proportional to 278,683,371.64, 417,791,223.42 and 123,212,078.56

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Solution

The fourth proportional to 278,683,371.64, 417,791,223.42 and 123,212,078.56 is: 184,714,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,683,371.64 : 417,791,223.42 = 123,212,078.56 : x
  2. Step 2: Convert to fraction form
    278,683,371.64/417,791,223.42 = 123,212,078.56/x
  3. Step 3: Cross multiply
    278,683,371.64x = 417,791,223.42 × 123,212,078.56
  4. Step 4: Simplify right side
    278,683,371.64x = 51,476,925,041,703,552
  5. Step 5: Solve for x
    x = 51,476,925,041,703,552/278,683,371.64
  6. Step 6: Final answer
    x = 184,714,734.64

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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.