Home / 354,519,424.23-489,318,434.82-207,888,947.43

Finding the Fourth Proportional to 354,519,424.23, 489,318,434.82 and 207,888,947.43

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Solution

The fourth proportional to 354,519,424.23, 489,318,434.82 and 207,888,947.43 is: 286,934,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,519,424.23 : 489,318,434.82 = 207,888,947.43 : x
  2. Step 2: Convert to fraction form
    354,519,424.23/489,318,434.82 = 207,888,947.43/x
  3. Step 3: Cross multiply
    354,519,424.23x = 489,318,434.82 × 207,888,947.43
  4. Step 4: Simplify right side
    354,519,424.23x = 101,723,894,372,824,864
  5. Step 5: Solve for x
    x = 101,723,894,372,824,864/354,519,424.23
  6. Step 6: Final answer
    x = 286,934,614.64

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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.