Home / 13,148,999.40-19,723,499.10-12,645,114.60

Finding the Fourth Proportional to 13,148,999.40, 19,723,499.10 and 12,645,114.60

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Solution

The fourth proportional to 13,148,999.40, 19,723,499.10 and 12,645,114.60 is: 18,967,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,999.40 : 19,723,499.10 = 12,645,114.60 : x
  2. Step 2: Convert to fraction form
    13,148,999.40/19,723,499.10 = 12,645,114.60/x
  3. Step 3: Cross multiply
    13,148,999.40x = 19,723,499.10 × 12,645,114.60
  4. Step 4: Simplify right side
    13,148,999.40x = 249,405,906,432,496.88
  5. Step 5: Solve for x
    x = 249,405,906,432,496.88/13,148,999.40
  6. Step 6: Final answer
    x = 18,967,671.90

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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.