Finding the Fourth Proportional to 2,656,988,783.24, 3,985,863,542.22 and 816,895,980.68
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Solution
The fourth proportional to 2,656,988,783.24, 3,985,863,542.22 and 816,895,980.68 is: 1,225,460,915.65
Step by Step Solution
- Step 1: Write the proportion equation
2,656,988,783.24 : 3,985,863,542.22 = 816,895,980.68 : x - Step 2: Convert to fraction form
2,656,988,783.24/3,985,863,542.22 = 816,895,980.68/x - Step 3: Cross multiply
2,656,988,783.24x = 3,985,863,542.22 × 816,895,980.68 - Step 4: Simplify right side
2,656,988,783.24x = 3,256,035,907,178,465,280 - Step 5: Solve for x
x = 3,256,035,907,178,465,280/2,656,988,783.24 - Step 6: Final answer
x = 1,225,460,915.65
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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.