Home / 6,439,990.40-9,659,985.60-5,798,556.80

Finding the Fourth Proportional to 6,439,990.40, 9,659,985.60 and 5,798,556.80

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Solution

The fourth proportional to 6,439,990.40, 9,659,985.60 and 5,798,556.80 is: 8,697,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,990.40 : 9,659,985.60 = 5,798,556.80 : x
  2. Step 2: Convert to fraction form
    6,439,990.40/9,659,985.60 = 5,798,556.80/x
  3. Step 3: Cross multiply
    6,439,990.40x = 9,659,985.60 × 5,798,556.80
  4. Step 4: Simplify right side
    6,439,990.40x = 56,013,975,188,782.08
  5. Step 5: Solve for x
    x = 56,013,975,188,782.08/6,439,990.40
  6. Step 6: Final answer
    x = 8,697,835.20

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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.