Finding the Fourth Proportional to 1,570,985,444.78, 2,170,029,349.24 and 1,164,440,310.66
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Solution
The fourth proportional to 1,570,985,444.78, 2,170,029,349.24 and 1,164,440,310.66 is: 1,608,461,528.38
Step by Step Solution
- Step 1: Write the proportion equation
1,570,985,444.78 : 2,170,029,349.24 = 1,164,440,310.66 : x - Step 2: Convert to fraction form
1,570,985,444.78/2,170,029,349.24 = 1,164,440,310.66/x - Step 3: Cross multiply
1,570,985,444.78x = 2,170,029,349.24 × 1,164,440,310.66 - Step 4: Simplify right side
1,570,985,444.78x = 2,526,869,649,570,342,912 - Step 5: Solve for x
x = 2,526,869,649,570,342,912/1,570,985,444.78 - Step 6: Final answer
x = 1,608,461,528.38
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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.