Home / 12,776,165.82-19,142,595.81-7,716,847.50

Finding the Fourth Proportional to 12,776,165.82, 19,142,595.81 and 7,716,847.50

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Solution

The fourth proportional to 12,776,165.82, 19,142,595.81 and 7,716,847.50 is: 11,562,192.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,165.82 : 19,142,595.81 = 7,716,847.50 : x
  2. Step 2: Convert to fraction form
    12,776,165.82/19,142,595.81 = 7,716,847.50/x
  3. Step 3: Cross multiply
    12,776,165.82x = 19,142,595.81 × 7,716,847.50
  4. Step 4: Simplify right side
    12,776,165.82x = 147,720,492,619,908.97
  5. Step 5: Solve for x
    x = 147,720,492,619,908.97/12,776,165.82
  6. Step 6: Final answer
    x = 11,562,192.81

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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.