Finding the Fourth Proportional to 388,706,578.84, 533,559,764.16 and 343,666,954.09
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Solution
The fourth proportional to 388,706,578.84, 533,559,764.16 and 343,666,954.09 is: 471,735,928.73
Step by Step Solution
- Step 1: Write the proportion equation
388,706,578.84 : 533,559,764.16 = 343,666,954.09 : x - Step 2: Convert to fraction form
388,706,578.84/533,559,764.16 = 343,666,954.09/x - Step 3: Cross multiply
388,706,578.84x = 533,559,764.16 × 343,666,954.09 - Step 4: Simplify right side
388,706,578.84x = 183,366,858,973,845,952 - Step 5: Solve for x
x = 183,366,858,973,845,952/388,706,578.84 - Step 6: Final answer
x = 471,735,928.73
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.