Home / 7,776,123.90-11,664,185.85-6,642,383.10

Finding the Fourth Proportional to 7,776,123.90, 11,664,185.85 and 6,642,383.10

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Solution

The fourth proportional to 7,776,123.90, 11,664,185.85 and 6,642,383.10 is: 9,963,574.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,123.90 : 11,664,185.85 = 6,642,383.10 : x
  2. Step 2: Convert to fraction form
    7,776,123.90/11,664,185.85 = 6,642,383.10/x
  3. Step 3: Cross multiply
    7,776,123.90x = 11,664,185.85 × 6,642,383.10
  4. Step 4: Simplify right side
    7,776,123.90x = 77,477,990,965,299.12
  5. Step 5: Solve for x
    x = 77,477,990,965,299.12/7,776,123.90
  6. Step 6: Final answer
    x = 9,963,574.65

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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.