Home / 383,107,737.30-528,688,657.08-206,895,715.57

Finding the Fourth Proportional to 383,107,737.30, 528,688,657.08 and 206,895,715.57

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Solution

The fourth proportional to 383,107,737.30, 528,688,657.08 and 206,895,715.57 is: 285,516,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,107,737.30 : 528,688,657.08 = 206,895,715.57 : x
  2. Step 2: Convert to fraction form
    383,107,737.30/528,688,657.08 = 206,895,715.57/x
  3. Step 3: Cross multiply
    383,107,737.30x = 528,688,657.08 × 206,895,715.57
  4. Step 4: Simplify right side
    383,107,737.30x = 109,383,418,020,073,840
  5. Step 5: Solve for x
    x = 109,383,418,020,073,840/383,107,737.30
  6. Step 6: Final answer
    x = 285,516,076.47

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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.