Finding the Fourth Proportional to 686,011,340.08, 1,029,014,974.16 and 194,725,025.60
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Solution
The fourth proportional to 686,011,340.08, 1,029,014,974.16 and 194,725,025.60 is: 292,086,960.49
Step by Step Solution
- Step 1: Write the proportion equation
686,011,340.08 : 1,029,014,974.16 = 194,725,025.60 : x - Step 2: Convert to fraction form
686,011,340.08/1,029,014,974.16 = 194,725,025.60/x - Step 3: Cross multiply
686,011,340.08x = 1,029,014,974.16 × 194,725,025.60 - Step 4: Simplify right side
686,011,340.08x = 200,374,967,186,089,312 - Step 5: Solve for x
x = 200,374,967,186,089,312/686,011,340.08 - Step 6: Final answer
x = 292,086,960.49
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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.