Finding the Fourth Proportional to 129,482,081.94, 178,683,187.74 and 70,743,485.82
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Solution
The fourth proportional to 129,482,081.94, 178,683,187.74 and 70,743,485.82 is: 97,624,871.09
Step by Step Solution
- Step 1: Write the proportion equation
129,482,081.94 : 178,683,187.74 = 70,743,485.82 : x - Step 2: Convert to fraction form
129,482,081.94/178,683,187.74 = 70,743,485.82/x - Step 3: Cross multiply
129,482,081.94x = 178,683,187.74 × 70,743,485.82 - Step 4: Simplify right side
129,482,081.94x = 12,640,671,558,157,088 - Step 5: Solve for x
x = 12,640,671,558,157,088/129,482,081.94 - Step 6: Final answer
x = 97,624,871.09
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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.