Home / 472,405,511.80-708,608,267.70-127,394,014.60

Finding the Fourth Proportional to 472,405,511.80, 708,608,267.70 and 127,394,014.60

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Solution

The fourth proportional to 472,405,511.80, 708,608,267.70 and 127,394,014.60 is: 191,091,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,405,511.80 : 708,608,267.70 = 127,394,014.60 : x
  2. Step 2: Convert to fraction form
    472,405,511.80/708,608,267.70 = 127,394,014.60/x
  3. Step 3: Cross multiply
    472,405,511.80x = 708,608,267.70 × 127,394,014.60
  4. Step 4: Simplify right side
    472,405,511.80x = 90,272,452,001,054,512
  5. Step 5: Solve for x
    x = 90,272,452,001,054,512/472,405,511.80
  6. Step 6: Final answer
    x = 191,091,021.90

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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.