Home / 13,141,140.45-18,134,580.73-7,340,006.85

Finding the Fourth Proportional to 13,141,140.45, 18,134,580.73 and 7,340,006.85

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Solution

The fourth proportional to 13,141,140.45, 18,134,580.73 and 7,340,006.85 is: 10,129,101.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,140.45 : 18,134,580.73 = 7,340,006.85 : x
  2. Step 2: Convert to fraction form
    13,141,140.45/18,134,580.73 = 7,340,006.85/x
  3. Step 3: Cross multiply
    13,141,140.45x = 18,134,580.73 × 7,340,006.85
  4. Step 4: Simplify right side
    13,141,140.45x = 133,107,946,780,078
  5. Step 5: Solve for x
    x = 133,107,946,780,078/13,141,140.45
  6. Step 6: Final answer
    x = 10,129,101.60

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1.5x scale

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.