Home / 12,881,142.72-17,776,015.74-7,080,518.88

Finding the Fourth Proportional to 12,881,142.72, 17,776,015.74 and 7,080,518.88

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Solution

The fourth proportional to 12,881,142.72, 17,776,015.74 and 7,080,518.88 is: 9,771,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881,142.72 : 17,776,015.74 = 7,080,518.88 : x
  2. Step 2: Convert to fraction form
    12,881,142.72/17,776,015.74 = 7,080,518.88/x
  3. Step 3: Cross multiply
    12,881,142.72x = 17,776,015.74 × 7,080,518.88
  4. Step 4: Simplify right side
    12,881,142.72x = 125,863,415,058,247.16
  5. Step 5: Solve for x
    x = 125,863,415,058,247.16/12,881,142.72
  6. Step 6: Final answer
    x = 9,771,137.37

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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.