Home / 7,770,001.20-11,668,998.60-7,518,058.80

Finding the Fourth Proportional to 7,770,001.20, 11,668,998.60 and 7,518,058.80

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Solution

The fourth proportional to 7,770,001.20, 11,668,998.60 and 7,518,058.80 is: 11,290,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770,001.20 : 11,668,998.60 = 7,518,058.80 : x
  2. Step 2: Convert to fraction form
    7,770,001.20/11,668,998.60 = 7,518,058.80/x
  3. Step 3: Cross multiply
    7,770,001.20x = 11,668,998.60 × 7,518,058.80
  4. Step 4: Simplify right side
    7,770,001.20x = 87,728,217,611,917.67
  5. Step 5: Solve for x
    x = 87,728,217,611,917.67/7,770,001.20
  6. Step 6: Final answer
    x = 11,290,631.15

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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.