Home / 6,650,985.20-9,979,415.40-3,237,378.80

Finding the Fourth Proportional to 6,650,985.20, 9,979,415.40 and 3,237,378.80

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Solution

The fourth proportional to 6,650,985.20, 9,979,415.40 and 3,237,378.80 is: 4,857,498.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,650,985.20 : 9,979,415.40 = 3,237,378.80 : x
  2. Step 2: Convert to fraction form
    6,650,985.20/9,979,415.40 = 3,237,378.80/x
  3. Step 3: Cross multiply
    6,650,985.20x = 9,979,415.40 × 3,237,378.80
  4. Step 4: Simplify right side
    6,650,985.20x = 32,307,147,852,353.52
  5. Step 5: Solve for x
    x = 32,307,147,852,353.52/6,650,985.20
  6. Step 6: Final answer
    x = 4,857,498.08

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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.