Home / 13,315,903.20-19,973,854.80-8,202,405.60

Finding the Fourth Proportional to 13,315,903.20, 19,973,854.80 and 8,202,405.60

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Solution

The fourth proportional to 13,315,903.20, 19,973,854.80 and 8,202,405.60 is: 12,303,608.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,903.20 : 19,973,854.80 = 8,202,405.60 : x
  2. Step 2: Convert to fraction form
    13,315,903.20/19,973,854.80 = 8,202,405.60/x
  3. Step 3: Cross multiply
    13,315,903.20x = 19,973,854.80 × 8,202,405.60
  4. Step 4: Simplify right side
    13,315,903.20x = 163,833,658,465,106.88
  5. Step 5: Solve for x
    x = 163,833,658,465,106.88/13,315,903.20
  6. Step 6: Final answer
    x = 12,303,608.40

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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.