Finding the Fourth Proportional to 138,696,958.98, 208,075,254.12 and 40,330,374.84
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Solution
The fourth proportional to 138,696,958.98, 208,075,254.12 and 40,330,374.84 is: 60,504,232.07
Step by Step Solution
- Step 1: Write the proportion equation
138,696,958.98 : 208,075,254.12 = 40,330,374.84 : x - Step 2: Convert to fraction form
138,696,958.98/208,075,254.12 = 40,330,374.84/x - Step 3: Cross multiply
138,696,958.98x = 208,075,254.12 × 40,330,374.84 - Step 4: Simplify right side
138,696,958.98x = 8,391,752,993,587,855 - Step 5: Solve for x
x = 8,391,752,993,587,855/138,696,958.98 - Step 6: Final answer
x = 60,504,232.07
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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.