Home / 13,670,857.56-18,865,734.06-7,709,790.60

Finding the Fourth Proportional to 13,670,857.56, 18,865,734.06 and 7,709,790.60

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Solution

The fourth proportional to 13,670,857.56, 18,865,734.06 and 7,709,790.60 is: 10,639,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670,857.56 : 18,865,734.06 = 7,709,790.60 : x
  2. Step 2: Convert to fraction form
    13,670,857.56/18,865,734.06 = 7,709,790.60/x
  3. Step 3: Cross multiply
    13,670,857.56x = 18,865,734.06 × 7,709,790.60
  4. Step 4: Simplify right side
    13,670,857.56x = 145,450,859,117,887.81
  5. Step 5: Solve for x
    x = 145,450,859,117,887.81/13,670,857.56
  6. Step 6: Final answer
    x = 10,639,483.18

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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.