Home / 12,697,141.74-19,040,838.93-5,405,978.94

Finding the Fourth Proportional to 12,697,141.74, 19,040,838.93 and 5,405,978.94

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Solution

The fourth proportional to 12,697,141.74, 19,040,838.93 and 5,405,978.94 is: 8,106,893.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697,141.74 : 19,040,838.93 = 5,405,978.94 : x
  2. Step 2: Convert to fraction form
    12,697,141.74/19,040,838.93 = 5,405,978.94/x
  3. Step 3: Cross multiply
    12,697,141.74x = 19,040,838.93 × 5,405,978.94
  4. Step 4: Simplify right side
    12,697,141.74x = 102,934,374,255,512.14
  5. Step 5: Solve for x
    x = 102,934,374,255,512.14/12,697,141.74
  6. Step 6: Final answer
    x = 8,106,893.38

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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.