Home / 7,712,085.60-11,568,128.40-2,919,931.20

Finding the Fourth Proportional to 7,712,085.60, 11,568,128.40 and 2,919,931.20

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Solution

The fourth proportional to 7,712,085.60, 11,568,128.40 and 2,919,931.20 is: 4,379,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712,085.60 : 11,568,128.40 = 2,919,931.20 : x
  2. Step 2: Convert to fraction form
    7,712,085.60/11,568,128.40 = 2,919,931.20/x
  3. Step 3: Cross multiply
    7,712,085.60x = 11,568,128.40 × 2,919,931.20
  4. Step 4: Simplify right side
    7,712,085.60x = 33,778,139,040,766.08
  5. Step 5: Solve for x
    x = 33,778,139,040,766.08/7,712,085.60
  6. Step 6: Final answer
    x = 4,379,896.80

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1.5x scale

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.