Home / 211,378,574.40-316,991,790.45-73,166,628.48

Finding the Fourth Proportional to 211,378,574.40, 316,991,790.45 and 73,166,628.48

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Solution

The fourth proportional to 211,378,574.40, 316,991,790.45 and 73,166,628.48 is: 109,723,611.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,378,574.40 : 316,991,790.45 = 73,166,628.48 : x
  2. Step 2: Convert to fraction form
    211,378,574.40/316,991,790.45 = 73,166,628.48/x
  3. Step 3: Cross multiply
    211,378,574.40x = 316,991,790.45 × 73,166,628.48
  4. Step 4: Simplify right side
    211,378,574.40x = 23,193,220,563,065,164
  5. Step 5: Solve for x
    x = 23,193,220,563,065,164/211,378,574.40
  6. Step 6: Final answer
    x = 109,723,611.43

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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.