Home / 20,509,814.60-30,764,721.90-12,857,064.20

Finding the Fourth Proportional to 20,509,814.60, 30,764,721.90 and 12,857,064.20

Calculator

Solution

The fourth proportional to 20,509,814.60, 30,764,721.90 and 12,857,064.20 is: 19,285,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,509,814.60 : 30,764,721.90 = 12,857,064.20 : x
  2. Step 2: Convert to fraction form
    20,509,814.60/30,764,721.90 = 12,857,064.20/x
  3. Step 3: Cross multiply
    20,509,814.60x = 30,764,721.90 × 12,857,064.20
  4. Step 4: Simplify right side
    20,509,814.60x = 395,544,004,563,445.94
  5. Step 5: Solve for x
    x = 395,544,004,563,445.94/20,509,814.60
  6. Step 6: Final answer
    x = 19,285,596.30

Related Problems

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.