Home / 685,691,245.24-946,248,714.78-372,427,701.16

Finding the Fourth Proportional to 685,691,245.24, 946,248,714.78 and 372,427,701.16

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Solution

The fourth proportional to 685,691,245.24, 946,248,714.78 and 372,427,701.16 is: 513,947,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,691,245.24 : 946,248,714.78 = 372,427,701.16 : x
  2. Step 2: Convert to fraction form
    685,691,245.24/946,248,714.78 = 372,427,701.16/x
  3. Step 3: Cross multiply
    685,691,245.24x = 946,248,714.78 × 372,427,701.16
  4. Step 4: Simplify right side
    685,691,245.24x = 352,409,233,571,119,936
  5. Step 5: Solve for x
    x = 352,409,233,571,119,936/685,691,245.24
  6. Step 6: Final answer
    x = 513,947,401.28

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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.