Home / 13,680,626.45-18,878,973.23-7,485,648.26

Finding the Fourth Proportional to 13,680,626.45, 18,878,973.23 and 7,485,648.26

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Solution

The fourth proportional to 13,680,626.45, 18,878,973.23 and 7,485,648.26 is: 10,330,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680,626.45 : 18,878,973.23 = 7,485,648.26 : x
  2. Step 2: Convert to fraction form
    13,680,626.45/18,878,973.23 = 7,485,648.26/x
  3. Step 3: Cross multiply
    13,680,626.45x = 18,878,973.23 × 7,485,648.26
  4. Step 4: Simplify right side
    13,680,626.45x = 141,321,353,072,307.84
  5. Step 5: Solve for x
    x = 141,321,353,072,307.84/13,680,626.45
  6. Step 6: Final answer
    x = 10,330,035.22

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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.