Finding the Fourth Proportional to 1,992,029,299.80, 2,748,007,528.64 and 1,187,689,526.57
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Solution
The fourth proportional to 1,992,029,299.80, 2,748,007,528.64 and 1,187,689,526.57 is: 1,638,419,555.88
Step by Step Solution
- Step 1: Write the proportion equation
1,992,029,299.80 : 2,748,007,528.64 = 1,187,689,526.57 : x - Step 2: Convert to fraction form
1,992,029,299.80/2,748,007,528.64 = 1,187,689,526.57/x - Step 3: Cross multiply
1,992,029,299.80x = 2,748,007,528.64 × 1,187,689,526.57 - Step 4: Simplify right side
1,992,029,299.80x = 3,263,779,760,681,559,040 - Step 5: Solve for x
x = 3,263,779,760,681,559,040/1,992,029,299.80 - Step 6: Final answer
x = 1,638,419,555.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.