Home / 622,890,987.20-934,336,480.80-300,404,715.20

Finding the Fourth Proportional to 622,890,987.20, 934,336,480.80 and 300,404,715.20

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Solution

The fourth proportional to 622,890,987.20, 934,336,480.80 and 300,404,715.20 is: 450,607,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,890,987.20 : 934,336,480.80 = 300,404,715.20 : x
  2. Step 2: Convert to fraction form
    622,890,987.20/934,336,480.80 = 300,404,715.20/x
  3. Step 3: Cross multiply
    622,890,987.20x = 934,336,480.80 × 300,404,715.20
  4. Step 4: Simplify right side
    622,890,987.20x = 280,679,084,415,694,240
  5. Step 5: Solve for x
    x = 280,679,084,415,694,240/622,890,987.20
  6. Step 6: Final answer
    x = 450,607,072.80

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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.