Home / 7,971,427.20-11,958,890.40-3,929,851.20

Finding the Fourth Proportional to 7,971,427.20, 11,958,890.40 and 3,929,851.20

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Solution

The fourth proportional to 7,971,427.20, 11,958,890.40 and 3,929,851.20 is: 5,895,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971,427.20 : 11,958,890.40 = 3,929,851.20 : x
  2. Step 2: Convert to fraction form
    7,971,427.20/11,958,890.40 = 3,929,851.20/x
  3. Step 3: Cross multiply
    7,971,427.20x = 11,958,890.40 × 3,929,851.20
  4. Step 4: Simplify right side
    7,971,427.20x = 46,996,659,789,108.48
  5. Step 5: Solve for x
    x = 46,996,659,789,108.48/7,971,427.20
  6. Step 6: Final answer
    x = 5,895,639.34

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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.