Finding the Fourth Proportional to 1,245,582,916.80, 1,867,098,916.80 and 727,746,806.40
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Solution
The fourth proportional to 1,245,582,916.80, 1,867,098,916.80 and 727,746,806.40 is: 1,090,875,007.68
Step by Step Solution
- Step 1: Write the proportion equation
1,245,582,916.80 : 1,867,098,916.80 = 727,746,806.40 : x - Step 2: Convert to fraction form
1,245,582,916.80/1,867,098,916.80 = 727,746,806.40/x - Step 3: Cross multiply
1,245,582,916.80x = 1,867,098,916.80 × 727,746,806.40 - Step 4: Simplify right side
1,245,582,916.80x = 1,358,775,273,934,099,200 - Step 5: Solve for x
x = 1,358,775,273,934,099,200/1,245,582,916.80 - Step 6: Final answer
x = 1,090,875,007.68
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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.