Home / 13,130,986.40-19,649,240.40-8,879,458.40

Finding the Fourth Proportional to 13,130,986.40, 19,649,240.40 and 8,879,458.40

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Solution

The fourth proportional to 13,130,986.40, 19,649,240.40 and 8,879,458.40 is: 13,287,243.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,986.40 : 19,649,240.40 = 8,879,458.40 : x
  2. Step 2: Convert to fraction form
    13,130,986.40/19,649,240.40 = 8,879,458.40/x
  3. Step 3: Cross multiply
    13,130,986.40x = 19,649,240.40 × 8,879,458.40
  4. Step 4: Simplify right side
    13,130,986.40x = 174,474,612,723,399.34
  5. Step 5: Solve for x
    x = 174,474,612,723,399.34/13,130,986.40
  6. Step 6: Final answer
    x = 13,287,243.43

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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.