Home / 12,913,170.57-17,818,856.64-7,950,823.83

Finding the Fourth Proportional to 12,913,170.57, 17,818,856.64 and 7,950,823.83

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Solution

The fourth proportional to 12,913,170.57, 17,818,856.64 and 7,950,823.83 is: 10,971,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,170.57 : 17,818,856.64 = 7,950,823.83 : x
  2. Step 2: Convert to fraction form
    12,913,170.57/17,818,856.64 = 7,950,823.83/x
  3. Step 3: Cross multiply
    12,913,170.57x = 17,818,856.64 × 7,950,823.83
  4. Step 4: Simplify right side
    12,913,170.57x = 141,674,589,996,665.75
  5. Step 5: Solve for x
    x = 141,674,589,996,665.75/12,913,170.57
  6. Step 6: Final answer
    x = 10,971,324.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.