Home / 1,174,121,223.20-1,620,288,330.50-645,494,203.30

Finding the Fourth Proportional to 1,174,121,223.20, 1,620,288,330.50 and 645,494,203.30

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Solution

The fourth proportional to 1,174,121,223.20, 1,620,288,330.50 and 645,494,203.30 is: 890,782,573.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,121,223.20 : 1,620,288,330.50 = 645,494,203.30 : x
  2. Step 2: Convert to fraction form
    1,174,121,223.20/1,620,288,330.50 = 645,494,203.30/x
  3. Step 3: Cross multiply
    1,174,121,223.20x = 1,620,288,330.50 × 645,494,203.30
  4. Step 4: Simplify right side
    1,174,121,223.20x = 1,045,886,725,012,384,512
  5. Step 5: Solve for x
    x = 1,045,886,725,012,384,512/1,174,121,223.20
  6. Step 6: Final answer
    x = 890,782,573.68

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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.