Finding the Fourth Proportional to 3,438,006,902.70, 5,157,010,354.05 and 984,343,805.70
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Solution
The fourth proportional to 3,438,006,902.70, 5,157,010,354.05 and 984,343,805.70 is: 1,476,515,708.55
Step by Step Solution
- Step 1: Write the proportion equation
3,438,006,902.70 : 5,157,010,354.05 = 984,343,805.70 : x - Step 2: Convert to fraction form
3,438,006,902.70/5,157,010,354.05 = 984,343,805.70/x - Step 3: Cross multiply
3,438,006,902.70x = 5,157,010,354.05 × 984,343,805.70 - Step 4: Simplify right side
3,438,006,902.70x = 5,076,271,197,939,881,984 - Step 5: Solve for x
x = 5,076,271,197,939,881,984/3,438,006,902.70 - Step 6: Final answer
x = 1,476,515,708.55
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1.5x scale
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.