Finding the Fourth Proportional to 766,696,639, 1,149,584,638.72 and 351,653,552.68
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Solution
The fourth proportional to 766,696,639, 1,149,584,638.72 and 351,653,552.68 is: 527,269,198.47
Step by Step Solution
- Step 1: Write the proportion equation
766,696,639 : 1,149,584,638.72 = 351,653,552.68 : x - Step 2: Convert to fraction form
766,696,639/1,149,584,638.72 = 351,653,552.68/x - Step 3: Cross multiply
766,696,639x = 1,149,584,638.72 × 351,653,552.68 - Step 4: Simplify right side
766,696,639x = 404,255,522,312,242,304 - Step 5: Solve for x
x = 404,255,522,312,242,304/766,696,639 - Step 6: Final answer
x = 527,269,198.47
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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.