Finding the Fourth Proportional to 880,675,324.58, 1,215,260,068.34 and 518,512,122.69
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Solution
The fourth proportional to 880,675,324.58, 1,215,260,068.34 and 518,512,122.69 is: 715,504,409.02
Step by Step Solution
- Step 1: Write the proportion equation
880,675,324.58 : 1,215,260,068.34 = 518,512,122.69 : x - Step 2: Convert to fraction form
880,675,324.58/1,215,260,068.34 = 518,512,122.69/x - Step 3: Cross multiply
880,675,324.58x = 1,215,260,068.34 × 518,512,122.69 - Step 4: Simplify right side
880,675,324.58x = 630,127,077,656,664,064 - Step 5: Solve for x
x = 630,127,077,656,664,064/880,675,324.58 - Step 6: Final answer
x = 715,504,409.02
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Double scale
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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.