Finding the Fourth Proportional to 243,384,253.68, 335,869,718.76 and 131,878,137.36
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Solution
The fourth proportional to 243,384,253.68, 335,869,718.76 and 131,878,137.36 is: 181,991,530.82
Step by Step Solution
- Step 1: Write the proportion equation
243,384,253.68 : 335,869,718.76 = 131,878,137.36 : x - Step 2: Convert to fraction form
243,384,253.68/335,869,718.76 = 131,878,137.36/x - Step 3: Cross multiply
243,384,253.68x = 335,869,718.76 × 131,878,137.36 - Step 4: Simplify right side
243,384,253.68x = 44,293,872,905,695,848 - Step 5: Solve for x
x = 44,293,872,905,695,848/243,384,253.68 - Step 6: Final answer
x = 181,991,530.82
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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.