Home / 12,913,172.57-17,818,859.40-7,950,825.83

Finding the Fourth Proportional to 12,913,172.57, 17,818,859.40 and 7,950,825.83

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Solution

The fourth proportional to 12,913,172.57, 17,818,859.40 and 7,950,825.83 is: 10,971,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,172.57 : 17,818,859.40 = 7,950,825.83 : x
  2. Step 2: Convert to fraction form
    12,913,172.57/17,818,859.40 = 7,950,825.83/x
  3. Step 3: Cross multiply
    12,913,172.57x = 17,818,859.40 × 7,950,825.83
  4. Step 4: Simplify right side
    12,913,172.57x = 141,674,647,578,658.28
  5. Step 5: Solve for x
    x = 141,674,647,578,658.28/12,913,172.57
  6. Step 6: Final answer
    x = 10,971,327.67

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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.