Home / 7,968,660.60-11,890,840.20-7,109,828.40

Finding the Fourth Proportional to 7,968,660.60, 11,890,840.20 and 7,109,828.40

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Solution

The fourth proportional to 7,968,660.60, 11,890,840.20 and 7,109,828.40 is: 10,609,290.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968,660.60 : 11,890,840.20 = 7,109,828.40 : x
  2. Step 2: Convert to fraction form
    7,968,660.60/11,890,840.20 = 7,109,828.40/x
  3. Step 3: Cross multiply
    7,968,660.60x = 11,890,840.20 × 7,109,828.40
  4. Step 4: Simplify right side
    7,968,660.60x = 84,541,833,353,821.67
  5. Step 5: Solve for x
    x = 84,541,833,353,821.67/7,968,660.60
  6. Step 6: Final answer
    x = 10,609,290.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.