Finding the Fourth Proportional to 97,870,472.40, 135,069,857.76 and 53,825,233.68
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Solution
The fourth proportional to 97,870,472.40, 135,069,857.76 and 53,825,233.68 is: 74,283,555.38
Step by Step Solution
- Step 1: Write the proportion equation
97,870,472.40 : 135,069,857.76 = 53,825,233.68 : x - Step 2: Convert to fraction form
97,870,472.40/135,069,857.76 = 53,825,233.68/x - Step 3: Cross multiply
97,870,472.40x = 135,069,857.76 × 53,825,233.68 - Step 4: Simplify right side
97,870,472.40x = 7,270,166,657,056,361 - Step 5: Solve for x
x = 7,270,166,657,056,361/97,870,472.40 - Step 6: Final answer
x = 74,283,555.38
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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.