Finding the Fourth Proportional to 15,532,935.53, 21,435,474.63 and 8,657,269.97
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Solution
The fourth proportional to 15,532,935.53, 21,435,474.63 and 8,657,269.97 is: 11,947,045.71
Step by Step Solution
- Step 1: Write the proportion equation
15,532,935.53 : 21,435,474.63 = 8,657,269.97 : x - Step 2: Convert to fraction form
15,532,935.53/21,435,474.63 = 8,657,269.97/x - Step 3: Cross multiply
15,532,935.53x = 21,435,474.63 × 8,657,269.97 - Step 4: Simplify right side
15,532,935.53x = 185,572,690,699,818.47 - Step 5: Solve for x
x = 185,572,690,699,818.47/15,532,935.53 - Step 6: Final answer
x = 11,947,045.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.