Home / 12,715,231.40-19,048,846.36-7,512,316.18

Finding the Fourth Proportional to 12,715,231.40, 19,048,846.36 and 7,512,316.18

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Solution

The fourth proportional to 12,715,231.40, 19,048,846.36 and 7,512,316.18 is: 11,254,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715,231.40 : 19,048,846.36 = 7,512,316.18 : x
  2. Step 2: Convert to fraction form
    12,715,231.40/19,048,846.36 = 7,512,316.18/x
  3. Step 3: Cross multiply
    12,715,231.40x = 19,048,846.36 × 7,512,316.18
  4. Step 4: Simplify right side
    12,715,231.40x = 143,100,956,716,924.94
  5. Step 5: Solve for x
    x = 143,100,956,716,924.94/12,715,231.40
  6. Step 6: Final answer
    x = 11,254,294.33

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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.