Finding the Fourth Proportional to 153,923,715.45, 212,412,101.99 and 83,358,752.27
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Solution
The fourth proportional to 153,923,715.45, 212,412,101.99 and 83,358,752.27 is: 115,033,656.36
Step by Step Solution
- Step 1: Write the proportion equation
153,923,715.45 : 212,412,101.99 = 83,358,752.27 : x - Step 2: Convert to fraction form
153,923,715.45/212,412,101.99 = 83,358,752.27/x - Step 3: Cross multiply
153,923,715.45x = 212,412,101.99 × 83,358,752.27 - Step 4: Simplify right side
153,923,715.45x = 17,706,407,788,934,384 - Step 5: Solve for x
x = 17,706,407,788,934,384/153,923,715.45 - Step 6: Final answer
x = 115,033,656.36
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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.