Finding the Fourth Proportional to 644,602,473.69, 966,902,504.48 and 201,979,038.70
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Solution
The fourth proportional to 644,602,473.69, 966,902,504.48 and 201,979,038.70 is: 302,968,180.15
Step by Step Solution
- Step 1: Write the proportion equation
644,602,473.69 : 966,902,504.48 = 201,979,038.70 : x - Step 2: Convert to fraction form
644,602,473.69/966,902,504.48 = 201,979,038.70/x - Step 3: Cross multiply
644,602,473.69x = 966,902,504.48 × 201,979,038.70 - Step 4: Simplify right side
644,602,473.69x = 195,294,038,371,492,832 - Step 5: Solve for x
x = 195,294,038,371,492,832/644,602,473.69 - Step 6: Final answer
x = 302,968,180.15
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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.