Finding the Fourth Proportional to 516,723,753.36, 713,095,997.58 and 281,787,267.72
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Solution
The fourth proportional to 516,723,753.36, 713,095,997.58 and 281,787,267.72 is: 388,875,818.99
Step by Step Solution
- Step 1: Write the proportion equation
516,723,753.36 : 713,095,997.58 = 281,787,267.72 : x - Step 2: Convert to fraction form
516,723,753.36/713,095,997.58 = 281,787,267.72/x - Step 3: Cross multiply
516,723,753.36x = 713,095,997.58 × 281,787,267.72 - Step 4: Simplify right side
516,723,753.36x = 200,941,372,780,135,968 - Step 5: Solve for x
x = 200,941,372,780,135,968/516,723,753.36 - Step 6: Final answer
x = 388,875,818.99
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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.