Home / 12,839,595.59-17,716,749.68-7,807,778.12

Finding the Fourth Proportional to 12,839,595.59, 17,716,749.68 and 7,807,778.12

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Solution

The fourth proportional to 12,839,595.59, 17,716,749.68 and 7,807,778.12 is: 10,773,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839,595.59 : 17,716,749.68 = 7,807,778.12 : x
  2. Step 2: Convert to fraction form
    12,839,595.59/17,716,749.68 = 7,807,778.12/x
  3. Step 3: Cross multiply
    12,839,595.59x = 17,716,749.68 × 7,807,778.12
  4. Step 4: Simplify right side
    12,839,595.59x = 138,328,450,572,832.33
  5. Step 5: Solve for x
    x = 138,328,450,572,832.33/12,839,595.59
  6. Step 6: Final answer
    x = 10,773,583.14

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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.