Home / 808,218,005.30-1,212,327,007.95-349,052,981.30

Finding the Fourth Proportional to 808,218,005.30, 1,212,327,007.95 and 349,052,981.30

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Solution

The fourth proportional to 808,218,005.30, 1,212,327,007.95 and 349,052,981.30 is: 523,579,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,218,005.30 : 1,212,327,007.95 = 349,052,981.30 : x
  2. Step 2: Convert to fraction form
    808,218,005.30/1,212,327,007.95 = 349,052,981.30/x
  3. Step 3: Cross multiply
    808,218,005.30x = 1,212,327,007.95 × 349,052,981.30
  4. Step 4: Simplify right side
    808,218,005.30x = 423,166,356,435,456,320
  5. Step 5: Solve for x
    x = 423,166,356,435,456,320/808,218,005.30
  6. Step 6: Final answer
    x = 523,579,471.95

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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.