Home / 1,212,118,256.28-1,672,722,472.86-655,201,311.96

Finding the Fourth Proportional to 1,212,118,256.28, 1,672,722,472.86 and 655,201,311.96

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Solution

The fourth proportional to 1,212,118,256.28, 1,672,722,472.86 and 655,201,311.96 is: 904,177,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,118,256.28 : 1,672,722,472.86 = 655,201,311.96 : x
  2. Step 2: Convert to fraction form
    1,212,118,256.28/1,672,722,472.86 = 655,201,311.96/x
  3. Step 3: Cross multiply
    1,212,118,256.28x = 1,672,722,472.86 × 655,201,311.96
  4. Step 4: Simplify right side
    1,212,118,256.28x = 1,095,969,958,762,847,488
  5. Step 5: Solve for x
    x = 1,095,969,958,762,847,488/1,212,118,256.28
  6. Step 6: Final answer
    x = 904,177,420.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.