Home / 7,882,357.20-11,828,784.60-3,620,331.60

Finding the Fourth Proportional to 7,882,357.20, 11,828,784.60 and 3,620,331.60

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Solution

The fourth proportional to 7,882,357.20, 11,828,784.60 and 3,620,331.60 is: 5,432,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882,357.20 : 11,828,784.60 = 3,620,331.60 : x
  2. Step 2: Convert to fraction form
    7,882,357.20/11,828,784.60 = 3,620,331.60/x
  3. Step 3: Cross multiply
    7,882,357.20x = 11,828,784.60 × 3,620,331.60
  4. Step 4: Simplify right side
    7,882,357.20x = 42,824,122,676,973.36
  5. Step 5: Solve for x
    x = 42,824,122,676,973.36/7,882,357.20
  6. Step 6: Final answer
    x = 5,432,908.15

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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.