Finding the Fourth Proportional to 315,217,603.70, 472,826,405.55 and 194,285,251.70
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Solution
The fourth proportional to 315,217,603.70, 472,826,405.55 and 194,285,251.70 is: 291,427,877.55
Step by Step Solution
- Step 1: Write the proportion equation
315,217,603.70 : 472,826,405.55 = 194,285,251.70 : x - Step 2: Convert to fraction form
315,217,603.70/472,826,405.55 = 194,285,251.70/x - Step 3: Cross multiply
315,217,603.70x = 472,826,405.55 × 194,285,251.70 - Step 4: Simplify right side
315,217,603.70x = 91,863,197,212,688,016 - Step 5: Solve for x
x = 91,863,197,212,688,016/315,217,603.70 - Step 6: Final answer
x = 291,427,877.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.