Finding the Fourth Proportional to 147,494,971.97, 221,307,725.54 and 77,448,723.47
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Solution
The fourth proportional to 147,494,971.97, 221,307,725.54 and 77,448,723.47 is: 116,207,356.82
Step by Step Solution
- Step 1: Write the proportion equation
147,494,971.97 : 221,307,725.54 = 77,448,723.47 : x - Step 2: Convert to fraction form
147,494,971.97/221,307,725.54 = 77,448,723.47/x - Step 3: Cross multiply
147,494,971.97x = 221,307,725.54 × 77,448,723.47 - Step 4: Simplify right side
147,494,971.97x = 17,140,000,837,122,116 - Step 5: Solve for x
x = 17,140,000,837,122,116/147,494,971.97 - Step 6: Final answer
x = 116,207,356.82
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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.