Home / 13,681,632.35-18,880,873.53-7,487,217.29

Finding the Fourth Proportional to 13,681,632.35, 18,880,873.53 and 7,487,217.29

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Solution

The fourth proportional to 13,681,632.35, 18,880,873.53 and 7,487,217.29 is: 10,332,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681,632.35 : 18,880,873.53 = 7,487,217.29 : x
  2. Step 2: Convert to fraction form
    13,681,632.35/18,880,873.53 = 7,487,217.29/x
  3. Step 3: Cross multiply
    13,681,632.35x = 18,880,873.53 × 7,487,217.29
  4. Step 4: Simplify right side
    13,681,632.35x = 141,365,202,744,119.34
  5. Step 5: Solve for x
    x = 141,365,202,744,119.34/13,681,632.35
  6. Step 6: Final answer
    x = 10,332,480.74

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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.