Home / 28,405,040.45-42,609,354.31-12,007,267.20

Finding the Fourth Proportional to 28,405,040.45, 42,609,354.31 and 12,007,267.20

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Solution

The fourth proportional to 28,405,040.45, 42,609,354.31 and 12,007,267.20 is: 18,011,659.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,040.45 : 42,609,354.31 = 12,007,267.20 : x
  2. Step 2: Convert to fraction form
    28,405,040.45/42,609,354.31 = 12,007,267.20/x
  3. Step 3: Cross multiply
    28,405,040.45x = 42,609,354.31 × 12,007,267.20
  4. Step 4: Simplify right side
    28,405,040.45x = 511,621,902,434,650.69
  5. Step 5: Solve for x
    x = 511,621,902,434,650.69/28,405,040.45
  6. Step 6: Final answer
    x = 18,011,659.00

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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.