Home / 571,391,999.80-857,087,999.70-298,846,310.20

Finding the Fourth Proportional to 571,391,999.80, 857,087,999.70 and 298,846,310.20

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Solution

The fourth proportional to 571,391,999.80, 857,087,999.70 and 298,846,310.20 is: 448,269,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,391,999.80 : 857,087,999.70 = 298,846,310.20 : x
  2. Step 2: Convert to fraction form
    571,391,999.80/857,087,999.70 = 298,846,310.20/x
  3. Step 3: Cross multiply
    571,391,999.80x = 857,087,999.70 × 298,846,310.20
  4. Step 4: Simplify right side
    571,391,999.80x = 256,137,586,227,043,712
  5. Step 5: Solve for x
    x = 256,137,586,227,043,712/571,391,999.80
  6. Step 6: Final answer
    x = 448,269,465.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.