Home / 13,609,220-18,780,503.40-7,414,340.72

Finding the Fourth Proportional to 13,609,220, 18,780,503.40 and 7,414,340.72

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Solution

The fourth proportional to 13,609,220, 18,780,503.40 and 7,414,340.72 is: 10,231,670.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,220 : 18,780,503.40 = 7,414,340.72 : x
  2. Step 2: Convert to fraction form
    13,609,220/18,780,503.40 = 7,414,340.72/x
  3. Step 3: Cross multiply
    13,609,220x = 18,780,503.40 × 7,414,340.72
  4. Step 4: Simplify right side
    13,609,220x = 139,245,051,100,718.44
  5. Step 5: Solve for x
    x = 139,245,051,100,718.44/13,609,220
  6. Step 6: Final answer
    x = 10,231,670.23

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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.