Home / 8,764,823.60-13,147,235.40-7,421,130.80

Finding the Fourth Proportional to 8,764,823.60, 13,147,235.40 and 7,421,130.80

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Solution

The fourth proportional to 8,764,823.60, 13,147,235.40 and 7,421,130.80 is: 11,131,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764,823.60 : 13,147,235.40 = 7,421,130.80 : x
  2. Step 2: Convert to fraction form
    8,764,823.60/13,147,235.40 = 7,421,130.80/x
  3. Step 3: Cross multiply
    8,764,823.60x = 13,147,235.40 × 7,421,130.80
  4. Step 4: Simplify right side
    8,764,823.60x = 97,567,353,561,790.33
  5. Step 5: Solve for x
    x = 97,567,353,561,790.33/8,764,823.60
  6. Step 6: Final answer
    x = 11,131,696.20

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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.