Home / 13,113,022.80-19,669,534.20-12,861,080.40

Finding the Fourth Proportional to 13,113,022.80, 19,669,534.20 and 12,861,080.40

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Solution

The fourth proportional to 13,113,022.80, 19,669,534.20 and 12,861,080.40 is: 19,291,620.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113,022.80 : 19,669,534.20 = 12,861,080.40 : x
  2. Step 2: Convert to fraction form
    13,113,022.80/19,669,534.20 = 12,861,080.40/x
  3. Step 3: Cross multiply
    13,113,022.80x = 19,669,534.20 × 12,861,080.40
  4. Step 4: Simplify right side
    13,113,022.80x = 252,971,460,776,749.69
  5. Step 5: Solve for x
    x = 252,971,460,776,749.69/13,113,022.80
  6. Step 6: Final answer
    x = 19,291,620.60

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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.