Home / 13,141,139.45-18,134,579.36-7,340,005.85

Finding the Fourth Proportional to 13,141,139.45, 18,134,579.36 and 7,340,005.85

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Solution

The fourth proportional to 13,141,139.45, 18,134,579.36 and 7,340,005.85 is: 10,129,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,139.45 : 18,134,579.36 = 7,340,005.85 : x
  2. Step 2: Convert to fraction form
    13,141,139.45/18,134,579.36 = 7,340,005.85/x
  3. Step 3: Cross multiply
    13,141,139.45x = 18,134,579.36 × 7,340,005.85
  4. Step 4: Simplify right side
    13,141,139.45x = 133,107,918,552,989.22
  5. Step 5: Solve for x
    x = 133,107,918,552,989.22/13,141,139.45
  6. Step 6: Final answer
    x = 10,129,100.22

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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.