Home / 357,677,901.78-493,523,143.97-208,970,302.70

Finding the Fourth Proportional to 357,677,901.78, 493,523,143.97 and 208,970,302.70

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Solution

The fourth proportional to 357,677,901.78, 493,523,143.97 and 208,970,302.70 is: 288,336,741.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,677,901.78 : 493,523,143.97 = 208,970,302.70 : x
  2. Step 2: Convert to fraction form
    357,677,901.78/493,523,143.97 = 208,970,302.70/x
  3. Step 3: Cross multiply
    357,677,901.78x = 493,523,143.97 × 208,970,302.70
  4. Step 4: Simplify right side
    357,677,901.78x = 103,131,680,781,354,096
  5. Step 5: Solve for x
    x = 103,131,680,781,354,096/357,677,901.78
  6. Step 6: Final answer
    x = 288,336,741.71

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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.