Home / 13,208,002.80-19,812,004.20-11,885,305.20

Finding the Fourth Proportional to 13,208,002.80, 19,812,004.20 and 11,885,305.20

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Solution

The fourth proportional to 13,208,002.80, 19,812,004.20 and 11,885,305.20 is: 17,827,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208,002.80 : 19,812,004.20 = 11,885,305.20 : x
  2. Step 2: Convert to fraction form
    13,208,002.80/19,812,004.20 = 11,885,305.20/x
  3. Step 3: Cross multiply
    13,208,002.80x = 19,812,004.20 × 11,885,305.20
  4. Step 4: Simplify right side
    13,208,002.80x = 235,471,716,540,681.81
  5. Step 5: Solve for x
    x = 235,471,716,540,681.81/13,208,002.80
  6. Step 6: Final answer
    x = 17,827,957.80

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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.