Finding the Fourth Proportional to 240,445,509.96, 331,643,748.68 and 220,663,157.18
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Solution
The fourth proportional to 240,445,509.96, 331,643,748.68 and 220,663,157.18 is: 304,358,175.17
Step by Step Solution
- Step 1: Write the proportion equation
240,445,509.96 : 331,643,748.68 = 220,663,157.18 : x - Step 2: Convert to fraction form
240,445,509.96/331,643,748.68 = 220,663,157.18/x - Step 3: Cross multiply
240,445,509.96x = 331,643,748.68 × 220,663,157.18 - Step 4: Simplify right side
240,445,509.96x = 73,181,556,639,977,728 - Step 5: Solve for x
x = 73,181,556,639,977,728/240,445,509.96 - Step 6: Final answer
x = 304,358,175.17
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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.