Finding the Fourth Proportional to 787,355,319.24, 1,086,529,289.58 and 434,923,724.76
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Solution
The fourth proportional to 787,355,319.24, 1,086,529,289.58 and 434,923,724.76 is: 600,183,111.92
Step by Step Solution
- Step 1: Write the proportion equation
787,355,319.24 : 1,086,529,289.58 = 434,923,724.76 : x - Step 2: Convert to fraction form
787,355,319.24/1,086,529,289.58 = 434,923,724.76/x - Step 3: Cross multiply
787,355,319.24x = 1,086,529,289.58 × 434,923,724.76 - Step 4: Simplify right side
787,355,319.24x = 472,557,365,684,970,240 - Step 5: Solve for x
x = 472,557,365,684,970,240/787,355,319.24 - Step 6: Final answer
x = 600,183,111.92
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1.5x scale
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.