Home / 7,728,416.19-11,648,175.32-6,661,802.72

Finding the Fourth Proportional to 7,728,416.19, 11,648,175.32 and 6,661,802.72

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Solution

The fourth proportional to 7,728,416.19, 11,648,175.32 and 6,661,802.72 is: 10,040,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728,416.19 : 11,648,175.32 = 6,661,802.72 : x
  2. Step 2: Convert to fraction form
    7,728,416.19/11,648,175.32 = 6,661,802.72/x
  3. Step 3: Cross multiply
    7,728,416.19x = 11,648,175.32 × 6,661,802.72
  4. Step 4: Simplify right side
    7,728,416.19x = 77,597,846,075,587.81
  5. Step 5: Solve for x
    x = 77,597,846,075,587.81/7,728,416.19
  6. Step 6: Final answer
    x = 10,040,588.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.