Home / 476,927,999.70-715,391,999.55-331,809,177.30

Finding the Fourth Proportional to 476,927,999.70, 715,391,999.55 and 331,809,177.30

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Solution

The fourth proportional to 476,927,999.70, 715,391,999.55 and 331,809,177.30 is: 497,713,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,927,999.70 : 715,391,999.55 = 331,809,177.30 : x
  2. Step 2: Convert to fraction form
    476,927,999.70/715,391,999.55 = 331,809,177.30/x
  3. Step 3: Cross multiply
    476,927,999.70x = 715,391,999.55 × 331,809,177.30
  4. Step 4: Simplify right side
    476,927,999.70x = 237,373,630,817,687,456
  5. Step 5: Solve for x
    x = 237,373,630,817,687,456/476,927,999.70
  6. Step 6: Final answer
    x = 497,713,765.95

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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.