Finding the Fourth Proportional to 134,829,371.39, 186,011,592.42 and 78,304,495.12
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Solution
The fourth proportional to 134,829,371.39, 186,011,592.42 and 78,304,495.12 is: 108,029,457.39
Step by Step Solution
- Step 1: Write the proportion equation
134,829,371.39 : 186,011,592.42 = 78,304,495.12 : x - Step 2: Convert to fraction form
134,829,371.39/186,011,592.42 = 78,304,495.12/x - Step 3: Cross multiply
134,829,371.39x = 186,011,592.42 × 78,304,495.12 - Step 4: Simplify right side
134,829,371.39x = 14,565,543,830,915,318 - Step 5: Solve for x
x = 14,565,543,830,915,318/134,829,371.39 - Step 6: Final answer
x = 108,029,457.39
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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.