Home / 13,306,678.19-18,363,455.06-7,804,021.85

Finding the Fourth Proportional to 13,306,678.19, 18,363,455.06 and 7,804,021.85

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Solution

The fourth proportional to 13,306,678.19, 18,363,455.06 and 7,804,021.85 is: 10,769,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,678.19 : 18,363,455.06 = 7,804,021.85 : x
  2. Step 2: Convert to fraction form
    13,306,678.19/18,363,455.06 = 7,804,021.85/x
  3. Step 3: Cross multiply
    13,306,678.19x = 18,363,455.06 × 7,804,021.85
  4. Step 4: Simplify right side
    13,306,678.19x = 143,308,804,467,758.62
  5. Step 5: Solve for x
    x = 143,308,804,467,758.62/13,306,678.19
  6. Step 6: Final answer
    x = 10,769,690.41

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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.