Home / 6,438,270.80-9,643,409.40-3,909,515.60

Finding the Fourth Proportional to 6,438,270.80, 9,643,409.40 and 3,909,515.60

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Solution

The fourth proportional to 6,438,270.80, 9,643,409.40 and 3,909,515.60 is: 5,855,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,270.80 : 9,643,409.40 = 3,909,515.60 : x
  2. Step 2: Convert to fraction form
    6,438,270.80/9,643,409.40 = 3,909,515.60/x
  3. Step 3: Cross multiply
    6,438,270.80x = 9,643,409.40 × 3,909,515.60
  4. Step 4: Simplify right side
    6,438,270.80x = 37,701,059,486,486.64
  5. Step 5: Solve for x
    x = 37,701,059,486,486.64/6,438,270.80
  6. Step 6: Final answer
    x = 5,855,774.11

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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.