Finding the Fourth Proportional to 644,602,507.44, 966,902,554.98 and 201,979,072.38
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Solution
The fourth proportional to 644,602,507.44, 966,902,554.98 and 201,979,072.38 is: 302,968,230.63
Step by Step Solution
- Step 1: Write the proportion equation
644,602,507.44 : 966,902,554.98 = 201,979,072.38 : x - Step 2: Convert to fraction form
644,602,507.44/966,902,554.98 = 201,979,072.38/x - Step 3: Cross multiply
644,602,507.44x = 966,902,554.98 × 201,979,072.38 - Step 4: Simplify right side
644,602,507.44x = 195,294,081,136,712,352 - Step 5: Solve for x
x = 195,294,081,136,712,352/644,602,507.44 - Step 6: Final answer
x = 302,968,230.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.