Finding the Fourth Proportional to 1,878,523,916.22, 2,817,320,278.43 and 634,926,771.05
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Solution
The fourth proportional to 1,878,523,916.22, 2,817,320,278.43 and 634,926,771.05 is: 952,232,788.70
Step by Step Solution
- Step 1: Write the proportion equation
1,878,523,916.22 : 2,817,320,278.43 = 634,926,771.05 : x - Step 2: Convert to fraction form
1,878,523,916.22/2,817,320,278.43 = 634,926,771.05/x - Step 3: Cross multiply
1,878,523,916.22x = 2,817,320,278.43 × 634,926,771.05 - Step 4: Simplify right side
1,878,523,916.22x = 1,788,792,067,384,747,264 - Step 5: Solve for x
x = 1,788,792,067,384,747,264/1,878,523,916.22 - Step 6: Final answer
x = 952,232,788.70
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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.