Finding the Fourth Proportional to 517,151,638.76, 713,684,402.64 and 282,217,442.08
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Solution
The fourth proportional to 517,151,638.76, 713,684,402.64 and 282,217,442.08 is: 389,468,332.82
Step by Step Solution
- Step 1: Write the proportion equation
517,151,638.76 : 713,684,402.64 = 282,217,442.08 : x - Step 2: Convert to fraction form
517,151,638.76/713,684,402.64 = 282,217,442.08/x - Step 3: Cross multiply
517,151,638.76x = 713,684,402.64 × 282,217,442.08 - Step 4: Simplify right side
517,151,638.76x = 201,414,186,565,453,568 - Step 5: Solve for x
x = 201,414,186,565,453,568/517,151,638.76 - Step 6: Final answer
x = 389,468,332.82
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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.