Home / 412,025,200.30-618,037,800.45-380,457,604.90

Finding the Fourth Proportional to 412,025,200.30, 618,037,800.45 and 380,457,604.90

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Solution

The fourth proportional to 412,025,200.30, 618,037,800.45 and 380,457,604.90 is: 570,686,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,025,200.30 : 618,037,800.45 = 380,457,604.90 : x
  2. Step 2: Convert to fraction form
    412,025,200.30/618,037,800.45 = 380,457,604.90/x
  3. Step 3: Cross multiply
    412,025,200.30x = 618,037,800.45 × 380,457,604.90
  4. Step 4: Simplify right side
    412,025,200.30x = 235,137,181,296,871,136
  5. Step 5: Solve for x
    x = 235,137,181,296,871,136/412,025,200.30
  6. Step 6: Final answer
    x = 570,686,407.35

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1.5x scale

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.