Home / 12,960,790.68-17,885,544.48-7,159,447.56

Finding the Fourth Proportional to 12,960,790.68, 17,885,544.48 and 7,159,447.56

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Solution

The fourth proportional to 12,960,790.68, 17,885,544.48 and 7,159,447.56 is: 9,879,846.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,960,790.68 : 17,885,544.48 = 7,159,447.56 : x
  2. Step 2: Convert to fraction form
    12,960,790.68/17,885,544.48 = 7,159,447.56/x
  3. Step 3: Cross multiply
    12,960,790.68x = 17,885,544.48 × 7,159,447.56
  4. Step 4: Simplify right side
    12,960,790.68x = 128,050,617,786,607.47
  5. Step 5: Solve for x
    x = 128,050,617,786,607.47/12,960,790.68
  6. Step 6: Final answer
    x = 9,879,846.14

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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.