Home / 13,146,893.90-19,720,340.85-7,838,477.90

Finding the Fourth Proportional to 13,146,893.90, 19,720,340.85 and 7,838,477.90

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Solution

The fourth proportional to 13,146,893.90, 19,720,340.85 and 7,838,477.90 is: 11,757,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,893.90 : 19,720,340.85 = 7,838,477.90 : x
  2. Step 2: Convert to fraction form
    13,146,893.90/19,720,340.85 = 7,838,477.90/x
  3. Step 3: Cross multiply
    13,146,893.90x = 19,720,340.85 × 7,838,477.90
  4. Step 4: Simplify right side
    13,146,893.90x = 154,577,455,933,192.22
  5. Step 5: Solve for x
    x = 154,577,455,933,192.22/13,146,893.90
  6. Step 6: Final answer
    x = 11,757,716.85

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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.