Home / 1,025,629,009.80-1,538,443,514.70-298,641,438.60

Finding the Fourth Proportional to 1,025,629,009.80, 1,538,443,514.70 and 298,641,438.60

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Solution

The fourth proportional to 1,025,629,009.80, 1,538,443,514.70 and 298,641,438.60 is: 447,962,157.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,629,009.80 : 1,538,443,514.70 = 298,641,438.60 : x
  2. Step 2: Convert to fraction form
    1,025,629,009.80/1,538,443,514.70 = 298,641,438.60/x
  3. Step 3: Cross multiply
    1,025,629,009.80x = 1,538,443,514.70 × 298,641,438.60
  4. Step 4: Simplify right side
    1,025,629,009.80x = 459,442,984,434,848,320
  5. Step 5: Solve for x
    x = 459,442,984,434,848,320/1,025,629,009.80
  6. Step 6: Final answer
    x = 447,962,157.90

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Double scale
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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.