Finding the Fourth Proportional to 2,160,763,306.77, 2,980,940,289.17 and 1,446,528,975.05
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Solution
The fourth proportional to 2,160,763,306.77, 2,980,940,289.17 and 1,446,528,975.05 is: 1,995,598,725.53
Step by Step Solution
- Step 1: Write the proportion equation
2,160,763,306.77 : 2,980,940,289.17 = 1,446,528,975.05 : x - Step 2: Convert to fraction form
2,160,763,306.77/2,980,940,289.17 = 1,446,528,975.05/x - Step 3: Cross multiply
2,160,763,306.77x = 2,980,940,289.17 × 1,446,528,975.05 - Step 4: Simplify right side
2,160,763,306.77x = 4,312,016,501,156,193,792 - Step 5: Solve for x
x = 4,312,016,501,156,193,792/2,160,763,306.77 - Step 6: Final answer
x = 1,995,598,725.53
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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.