Home / 677,014,725.20-1,015,522,087.80-289,594,236.20

Finding the Fourth Proportional to 677,014,725.20, 1,015,522,087.80 and 289,594,236.20

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Solution

The fourth proportional to 677,014,725.20, 1,015,522,087.80 and 289,594,236.20 is: 434,391,354.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,014,725.20 : 1,015,522,087.80 = 289,594,236.20 : x
  2. Step 2: Convert to fraction form
    677,014,725.20/1,015,522,087.80 = 289,594,236.20/x
  3. Step 3: Cross multiply
    677,014,725.20x = 1,015,522,087.80 × 289,594,236.20
  4. Step 4: Simplify right side
    677,014,725.20x = 294,089,343,360,670,336
  5. Step 5: Solve for x
    x = 294,089,343,360,670,336/677,014,725.20
  6. Step 6: Final answer
    x = 434,391,354.30

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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.