Finding the Fourth Proportional to 118,242,616.50, 177,363,849.42 and 86,098,997.70
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Solution
The fourth proportional to 118,242,616.50, 177,363,849.42 and 86,098,997.70 is: 129,148,441.70
Step by Step Solution
- Step 1: Write the proportion equation
118,242,616.50 : 177,363,849.42 = 86,098,997.70 : x - Step 2: Convert to fraction form
118,242,616.50/177,363,849.42 = 86,098,997.70/x - Step 3: Cross multiply
118,242,616.50x = 177,363,849.42 × 86,098,997.70 - Step 4: Simplify right side
118,242,616.50x = 15,270,849,663,275,726 - Step 5: Solve for x
x = 15,270,849,663,275,726/118,242,616.50 - Step 6: Final answer
x = 129,148,441.70
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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.