Finding the Fourth Proportional to 97,872,212.72, 135,072,260.54 and 53,826,972.32
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Solution
The fourth proportional to 97,872,212.72, 135,072,260.54 and 53,826,972.32 is: 74,285,955.40
Step by Step Solution
- Step 1: Write the proportion equation
97,872,212.72 : 135,072,260.54 = 53,826,972.32 : x - Step 2: Convert to fraction form
97,872,212.72/135,072,260.54 = 53,826,972.32/x - Step 3: Cross multiply
97,872,212.72x = 135,072,260.54 × 53,826,972.32 - Step 4: Simplify right side
97,872,212.72x = 7,270,530,829,286,408 - Step 5: Solve for x
x = 7,270,530,829,286,408/97,872,212.72 - Step 6: Final answer
x = 74,285,955.40
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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.