Home / 276,521,929.48-381,600,415.78-149,362,607.21

Finding the Fourth Proportional to 276,521,929.48, 381,600,415.78 and 149,362,607.21

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Solution

The fourth proportional to 276,521,929.48, 381,600,415.78 and 149,362,607.21 is: 206,120,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,521,929.48 : 381,600,415.78 = 149,362,607.21 : x
  2. Step 2: Convert to fraction form
    276,521,929.48/381,600,415.78 = 149,362,607.21/x
  3. Step 3: Cross multiply
    276,521,929.48x = 381,600,415.78 × 149,362,607.21
  4. Step 4: Simplify right side
    276,521,929.48x = 56,996,833,011,039,416
  5. Step 5: Solve for x
    x = 56,996,833,011,039,416/276,521,929.48
  6. Step 6: Final answer
    x = 206,120,480.64

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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.