Home / 7,943,491.20-11,909,404.80-3,148,809.60

Finding the Fourth Proportional to 7,943,491.20, 11,909,404.80 and 3,148,809.60

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Solution

The fourth proportional to 7,943,491.20, 11,909,404.80 and 3,148,809.60 is: 4,720,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943,491.20 : 11,909,404.80 = 3,148,809.60 : x
  2. Step 2: Convert to fraction form
    7,943,491.20/11,909,404.80 = 3,148,809.60/x
  3. Step 3: Cross multiply
    7,943,491.20x = 11,909,404.80 × 3,148,809.60
  4. Step 4: Simplify right side
    7,943,491.20x = 37,500,448,164,526.09
  5. Step 5: Solve for x
    x = 37,500,448,164,526.09/7,943,491.20
  6. Step 6: Final answer
    x = 4,720,902.59

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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.