Finding the Fourth Proportional to 115,206,878.44, 172,790,968.38 and 38,529,790.12
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Solution
The fourth proportional to 115,206,878.44, 172,790,968.38 and 38,529,790.12 is: 57,788,214.01
Step by Step Solution
- Step 1: Write the proportion equation
115,206,878.44 : 172,790,968.38 = 38,529,790.12 : x - Step 2: Convert to fraction form
115,206,878.44/172,790,968.38 = 38,529,790.12/x - Step 3: Cross multiply
115,206,878.44x = 172,790,968.38 × 38,529,790.12 - Step 4: Simplify right side
115,206,878.44x = 6,657,599,746,312,956 - Step 5: Solve for x
x = 6,657,599,746,312,956/115,206,878.44 - Step 6: Final answer
x = 57,788,214.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.