Finding the Fourth Proportional to 139,007,589.09, 208,523,638.94 and 51,570,118.95
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Solution
The fourth proportional to 139,007,589.09, 208,523,638.94 and 51,570,118.95 is: 77,359,724.99
Step by Step Solution
- Step 1: Write the proportion equation
139,007,589.09 : 208,523,638.94 = 51,570,118.95 : x - Step 2: Convert to fraction form
139,007,589.09/208,523,638.94 = 51,570,118.95/x - Step 3: Cross multiply
139,007,589.09x = 208,523,638.94 × 51,570,118.95 - Step 4: Simplify right side
139,007,589.09x = 10,753,588,864,301,418 - Step 5: Solve for x
x = 10,753,588,864,301,418/139,007,589.09 - Step 6: Final answer
x = 77,359,724.99
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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.