Home / 13,209,620.20-19,814,430.30-9,178,541.80

Finding the Fourth Proportional to 13,209,620.20, 19,814,430.30 and 9,178,541.80

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Solution

The fourth proportional to 13,209,620.20, 19,814,430.30 and 9,178,541.80 is: 13,767,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,620.20 : 19,814,430.30 = 9,178,541.80 : x
  2. Step 2: Convert to fraction form
    13,209,620.20/19,814,430.30 = 9,178,541.80/x
  3. Step 3: Cross multiply
    13,209,620.20x = 19,814,430.30 × 9,178,541.80
  4. Step 4: Simplify right side
    13,209,620.20x = 181,867,576,751,736.56
  5. Step 5: Solve for x
    x = 181,867,576,751,736.56/13,209,620.20
  6. Step 6: Final answer
    x = 13,767,812.70

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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.