Finding the Fourth Proportional to 812,050,678.08, 1,120,600,940.85 and 459,619,101.96
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Solution
The fourth proportional to 812,050,678.08, 1,120,600,940.85 and 459,619,101.96 is: 634,257,949.65
Step by Step Solution
- Step 1: Write the proportion equation
812,050,678.08 : 1,120,600,940.85 = 459,619,101.96 : x - Step 2: Convert to fraction form
812,050,678.08/1,120,600,940.85 = 459,619,101.96/x - Step 3: Cross multiply
812,050,678.08x = 1,120,600,940.85 × 459,619,101.96 - Step 4: Simplify right side
812,050,678.08x = 515,049,598,089,008,000 - Step 5: Solve for x
x = 515,049,598,089,008,000/812,050,678.08 - Step 6: Final answer
x = 634,257,949.65
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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.