Home / 12,911,989.08-17,817,969.24-7,401,412.56

Finding the Fourth Proportional to 12,911,989.08, 17,817,969.24 and 7,401,412.56

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Solution

The fourth proportional to 12,911,989.08, 17,817,969.24 and 7,401,412.56 is: 10,213,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911,989.08 : 17,817,969.24 = 7,401,412.56 : x
  2. Step 2: Convert to fraction form
    12,911,989.08/17,817,969.24 = 7,401,412.56/x
  3. Step 3: Cross multiply
    12,911,989.08x = 17,817,969.24 × 7,401,412.56
  4. Step 4: Simplify right side
    12,911,989.08x = 131,878,141,326,629.64
  5. Step 5: Solve for x
    x = 131,878,141,326,629.64/12,911,989.08
  6. Step 6: Final answer
    x = 10,213,619.34

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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.