Home / 12,902,661.60-19,353,968.30-3,811,143.38

Finding the Fourth Proportional to 12,902,661.60, 19,353,968.30 and 3,811,143.38

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Solution

The fourth proportional to 12,902,661.60, 19,353,968.30 and 3,811,143.38 is: 5,716,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,902,661.60 : 19,353,968.30 = 3,811,143.38 : x
  2. Step 2: Convert to fraction form
    12,902,661.60/19,353,968.30 = 3,811,143.38/x
  3. Step 3: Cross multiply
    12,902,661.60x = 19,353,968.30 × 3,811,143.38
  4. Step 4: Simplify right side
    12,902,661.60x = 73,760,748,163,274.86
  5. Step 5: Solve for x
    x = 73,760,748,163,274.86/12,902,661.60
  6. Step 6: Final answer
    x = 5,716,707.95

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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.