Finding the Fourth Proportional to 494,778,079.49, 682,912,659.51 and 283,207,569.98
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Solution
The fourth proportional to 494,778,079.49, 682,912,659.51 and 283,207,569.98 is: 390,894,509.73
Step by Step Solution
- Step 1: Write the proportion equation
494,778,079.49 : 682,912,659.51 = 283,207,569.98 : x - Step 2: Convert to fraction form
494,778,079.49/682,912,659.51 = 283,207,569.98/x - Step 3: Cross multiply
494,778,079.49x = 682,912,659.51 × 283,207,569.98 - Step 4: Simplify right side
494,778,079.49x = 193,406,034,804,991,680 - Step 5: Solve for x
x = 193,406,034,804,991,680/494,778,079.49 - Step 6: Final answer
x = 390,894,509.73
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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.