Finding the Fourth Proportional to 215,428,366.05, 323,187,947.55 and 69,850,577.40
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Solution
The fourth proportional to 215,428,366.05, 323,187,947.55 and 69,850,577.40 is: 104,790,586.12
Step by Step Solution
- Step 1: Write the proportion equation
215,428,366.05 : 323,187,947.55 = 69,850,577.40 : x - Step 2: Convert to fraction form
215,428,366.05/323,187,947.55 = 69,850,577.40/x - Step 3: Cross multiply
215,428,366.05x = 323,187,947.55 × 69,850,577.40 - Step 4: Simplify right side
215,428,366.05x = 22,574,864,745,088,420 - Step 5: Solve for x
x = 22,574,864,745,088,420/215,428,366.05 - Step 6: Final answer
x = 104,790,586.12
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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.