Finding the Fourth Proportional to 2,516,089,916.80, 3,472,214,572.84 and 1,387,034,876.39
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Solution
The fourth proportional to 2,516,089,916.80, 3,472,214,572.84 and 1,387,034,876.39 is: 1,914,113,910.90
Step by Step Solution
- Step 1: Write the proportion equation
2,516,089,916.80 : 3,472,214,572.84 = 1,387,034,876.39 : x - Step 2: Convert to fraction form
2,516,089,916.80/3,472,214,572.84 = 1,387,034,876.39/x - Step 3: Cross multiply
2,516,089,916.80x = 3,472,214,572.84 × 1,387,034,876.39 - Step 4: Simplify right side
2,516,089,916.80x = 4,816,082,710,814,390,272 - Step 5: Solve for x
x = 4,816,082,710,814,390,272/2,516,089,916.80 - Step 6: Final answer
x = 1,914,113,910.90
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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.