Home / 7,260,021.60-10,890,032.40-6,126,280.80

Finding the Fourth Proportional to 7,260,021.60, 10,890,032.40 and 6,126,280.80

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Solution

The fourth proportional to 7,260,021.60, 10,890,032.40 and 6,126,280.80 is: 9,189,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,260,021.60 : 10,890,032.40 = 6,126,280.80 : x
  2. Step 2: Convert to fraction form
    7,260,021.60/10,890,032.40 = 6,126,280.80/x
  3. Step 3: Cross multiply
    7,260,021.60x = 10,890,032.40 × 6,126,280.80
  4. Step 4: Simplify right side
    7,260,021.60x = 66,715,396,403,497.92
  5. Step 5: Solve for x
    x = 66,715,396,403,497.92/7,260,021.60
  6. Step 6: Final answer
    x = 9,189,421.20

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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.