Home / 354,519,586.23-489,318,658.34-207,889,109.43

Finding the Fourth Proportional to 354,519,586.23, 489,318,658.34 and 207,889,109.43

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Solution

The fourth proportional to 354,519,586.23, 489,318,658.34 and 207,889,109.43 is: 286,934,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,519,586.23 : 489,318,658.34 = 207,889,109.43 : x
  2. Step 2: Convert to fraction form
    354,519,586.23/489,318,658.34 = 207,889,109.43/x
  3. Step 3: Cross multiply
    354,519,586.23x = 489,318,658.34 × 207,889,109.43
  4. Step 4: Simplify right side
    354,519,586.23x = 101,724,020,108,745,600
  5. Step 5: Solve for x
    x = 101,724,020,108,745,600/354,519,586.23
  6. Step 6: Final answer
    x = 286,934,838.19

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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.