Finding the Fourth Proportional to 1,438,939,140.73, 2,158,614,605.75 and 443,044,433.99
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Solution
The fourth proportional to 1,438,939,140.73, 2,158,614,605.75 and 443,044,433.99 is: 664,630,045.25
Step by Step Solution
- Step 1: Write the proportion equation
1,438,939,140.73 : 2,158,614,605.75 = 443,044,433.99 : x - Step 2: Convert to fraction form
1,438,939,140.73/2,158,614,605.75 = 443,044,433.99/x - Step 3: Cross multiply
1,438,939,140.73x = 2,158,614,605.75 × 443,044,433.99 - Step 4: Simplify right side
1,438,939,140.73x = 956,362,186,210,237,056 - Step 5: Solve for x
x = 956,362,186,210,237,056/1,438,939,140.73 - Step 6: Final answer
x = 664,630,045.25
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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.