Finding the Fourth Proportional to 245,423,341.23, 338,683,975.17 and 135,415,059.63
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Solution
The fourth proportional to 245,423,341.23, 338,683,975.17 and 135,415,059.63 is: 186,872,652.22
Step by Step Solution
- Step 1: Write the proportion equation
245,423,341.23 : 338,683,975.17 = 135,415,059.63 : x - Step 2: Convert to fraction form
245,423,341.23/338,683,975.17 = 135,415,059.63/x - Step 3: Cross multiply
245,423,341.23x = 338,683,975.17 × 135,415,059.63 - Step 4: Simplify right side
245,423,341.23x = 45,862,910,693,370,992 - Step 5: Solve for x
x = 45,862,910,693,370,992/245,423,341.23 - Step 6: Final answer
x = 186,872,652.22
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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.