Finding the Fourth Proportional to 97,872,207.71, 135,072,253.64 and 53,826,967.31
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Solution
The fourth proportional to 97,872,207.71, 135,072,253.64 and 53,826,967.31 is: 74,285,948.49
Step by Step Solution
- Step 1: Write the proportion equation
97,872,207.71 : 135,072,253.64 = 53,826,967.31 : x - Step 2: Convert to fraction form
97,872,207.71/135,072,253.64 = 53,826,967.31/x - Step 3: Cross multiply
97,872,207.71x = 135,072,253.64 × 53,826,967.31 - Step 4: Simplify right side
97,872,207.71x = 7,270,529,780,899,173 - Step 5: Solve for x
x = 7,270,529,780,899,173/97,872,207.71 - Step 6: Final answer
x = 74,285,948.49
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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.