Finding the Fourth Proportional to 1,371,880,974.34, 1,893,195,741.84 and 777,165,457.91
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Solution
The fourth proportional to 1,371,880,974.34, 1,893,195,741.84 and 777,165,457.91 is: 1,072,488,330.35
Step by Step Solution
- Step 1: Write the proportion equation
1,371,880,974.34 : 1,893,195,741.84 = 777,165,457.91 : x - Step 2: Convert to fraction form
1,371,880,974.34/1,893,195,741.84 = 777,165,457.91/x - Step 3: Cross multiply
1,371,880,974.34x = 1,893,195,741.84 × 777,165,457.91 - Step 4: Simplify right side
1,371,880,974.34x = 1,471,326,335,608,004,096 - Step 5: Solve for x
x = 1,471,326,335,608,004,096/1,371,880,974.34 - Step 6: Final answer
x = 1,072,488,330.35
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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.