Home / 206,355,821.13-284,662,495.19-122,664,423.20

Finding the Fourth Proportional to 206,355,821.13, 284,662,495.19 and 122,664,423.20

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Solution

The fourth proportional to 206,355,821.13, 284,662,495.19 and 122,664,423.20 is: 169,212,385.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,355,821.13 : 284,662,495.19 = 122,664,423.20 : x
  2. Step 2: Convert to fraction form
    206,355,821.13/284,662,495.19 = 122,664,423.20/x
  3. Step 3: Cross multiply
    206,355,821.13x = 284,662,495.19 × 122,664,423.20
  4. Step 4: Simplify right side
    206,355,821.13x = 34,917,960,778,037,472
  5. Step 5: Solve for x
    x = 34,917,960,778,037,472/206,355,821.13
  6. Step 6: Final answer
    x = 169,212,385.61

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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.