Finding the Fourth Proportional to 304,909,129.56, 420,773,682.72 and 165,680,316.12
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Solution
The fourth proportional to 304,909,129.56, 420,773,682.72 and 165,680,316.12 is: 228,638,338.47
Step by Step Solution
- Step 1: Write the proportion equation
304,909,129.56 : 420,773,682.72 = 165,680,316.12 : x - Step 2: Convert to fraction form
304,909,129.56/420,773,682.72 = 165,680,316.12/x - Step 3: Cross multiply
304,909,129.56x = 420,773,682.72 × 165,680,316.12 - Step 4: Simplify right side
304,909,129.56x = 69,713,916,768,026,192 - Step 5: Solve for x
x = 69,713,916,768,026,192/304,909,129.56 - Step 6: Final answer
x = 228,638,338.47
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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.