Finding the Fourth Proportional to 154,788,936.77, 213,602,285.81 and 84,224,824.08
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Solution
The fourth proportional to 154,788,936.77, 213,602,285.81 and 84,224,824.08 is: 116,226,749.28
Step by Step Solution
- Step 1: Write the proportion equation
154,788,936.77 : 213,602,285.81 = 84,224,824.08 : x - Step 2: Convert to fraction form
154,788,936.77/213,602,285.81 = 84,224,824.08/x - Step 3: Cross multiply
154,788,936.77x = 213,602,285.81 × 84,224,824.08 - Step 4: Simplify right side
154,788,936.77x = 17,990,614,945,433,130 - Step 5: Solve for x
x = 17,990,614,945,433,130/154,788,936.77 - Step 6: Final answer
x = 116,226,749.28
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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.