Finding the Fourth Proportional to 112,814,257.29, 155,626,376.13 and 73,678,942.05
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Solution
The fourth proportional to 112,814,257.29, 155,626,376.13 and 73,678,942.05 is: 101,639,518.12
Step by Step Solution
- Step 1: Write the proportion equation
112,814,257.29 : 155,626,376.13 = 73,678,942.05 : x - Step 2: Convert to fraction form
112,814,257.29/155,626,376.13 = 73,678,942.05/x - Step 3: Cross multiply
112,814,257.29x = 155,626,376.13 × 73,678,942.05 - Step 4: Simplify right side
112,814,257.29x = 11,466,386,748,333,772 - Step 5: Solve for x
x = 11,466,386,748,333,772/112,814,257.29 - Step 6: Final answer
x = 101,639,518.12
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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.