Finding the Fourth Proportional to 124,640,747.80, 186,961,121.70 and 70,893,035.80
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Solution
The fourth proportional to 124,640,747.80, 186,961,121.70 and 70,893,035.80 is: 106,339,553.70
Step by Step Solution
- Step 1: Write the proportion equation
124,640,747.80 : 186,961,121.70 = 70,893,035.80 : x - Step 2: Convert to fraction form
124,640,747.80/186,961,121.70 = 70,893,035.80/x - Step 3: Cross multiply
124,640,747.80x = 186,961,121.70 × 70,893,035.80 - Step 4: Simplify right side
124,640,747.80x = 13,254,241,493,886,256 - Step 5: Solve for x
x = 13,254,241,493,886,256/124,640,747.80 - Step 6: Final answer
x = 106,339,553.70
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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.