Home / 12,409,672.40-18,616,258.20-3,889,120.40

Finding the Fourth Proportional to 12,409,672.40, 18,616,258.20 and 3,889,120.40

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Solution

The fourth proportional to 12,409,672.40, 18,616,258.20 and 3,889,120.40 is: 5,834,228.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409,672.40 : 18,616,258.20 = 3,889,120.40 : x
  2. Step 2: Convert to fraction form
    12,409,672.40/18,616,258.20 = 3,889,120.40/x
  3. Step 3: Cross multiply
    12,409,672.40x = 18,616,258.20 × 3,889,120.40
  4. Step 4: Simplify right side
    12,409,672.40x = 72,400,869,537,287.28
  5. Step 5: Solve for x
    x = 72,400,869,537,287.28/12,409,672.40
  6. Step 6: Final answer
    x = 5,834,228.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.