Home / 528,118,889.85-792,178,334.78-505,727,509.05

Finding the Fourth Proportional to 528,118,889.85, 792,178,334.78 and 505,727,509.05

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Solution

The fourth proportional to 528,118,889.85, 792,178,334.78 and 505,727,509.05 is: 758,591,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,118,889.85 : 792,178,334.78 = 505,727,509.05 : x
  2. Step 2: Convert to fraction form
    528,118,889.85/792,178,334.78 = 505,727,509.05/x
  3. Step 3: Cross multiply
    528,118,889.85x = 792,178,334.78 × 505,727,509.05
  4. Step 4: Simplify right side
    528,118,889.85x = 400,626,375,969,137,728
  5. Step 5: Solve for x
    x = 400,626,375,969,137,728/528,118,889.85
  6. Step 6: Final answer
    x = 758,591,263.58

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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.