Home / 7,172,843.63-9,898,530.58-3,909,592.98

Finding the Fourth Proportional to 7,172,843.63, 9,898,530.58 and 3,909,592.98

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Solution

The fourth proportional to 7,172,843.63, 9,898,530.58 and 3,909,592.98 is: 5,395,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,843.63 : 9,898,530.58 = 3,909,592.98 : x
  2. Step 2: Convert to fraction form
    7,172,843.63/9,898,530.58 = 3,909,592.98/x
  3. Step 3: Cross multiply
    7,172,843.63x = 9,898,530.58 × 3,909,592.98
  4. Step 4: Simplify right side
    7,172,843.63x = 38,699,225,672,770.32
  5. Step 5: Solve for x
    x = 38,699,225,672,770.32/7,172,843.63
  6. Step 6: Final answer
    x = 5,395,241.79

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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.