Home / 275,211,168-379,705,896.90-156,114,146.40

Finding the Fourth Proportional to 275,211,168, 379,705,896.90 and 156,114,146.40

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Solution

The fourth proportional to 275,211,168, 379,705,896.90 and 156,114,146.40 is: 215,389,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,211,168 : 379,705,896.90 = 156,114,146.40 : x
  2. Step 2: Convert to fraction form
    275,211,168/379,705,896.90 = 156,114,146.40/x
  3. Step 3: Cross multiply
    275,211,168x = 379,705,896.90 × 156,114,146.40
  4. Step 4: Simplify right side
    275,211,168x = 59,277,461,977,589,904
  5. Step 5: Solve for x
    x = 59,277,461,977,589,904/275,211,168
  6. Step 6: Final answer
    x = 215,389,013.49

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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.