Finding the Fourth Proportional to 151,164,612.77, 208,593,866.25 and 84,178,509.14
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Solution
The fourth proportional to 151,164,612.77, 208,593,866.25 and 84,178,509.14 is: 116,158,936.65
Step by Step Solution
- Step 1: Write the proportion equation
151,164,612.77 : 208,593,866.25 = 84,178,509.14 : x - Step 2: Convert to fraction form
151,164,612.77/208,593,866.25 = 84,178,509.14/x - Step 3: Cross multiply
151,164,612.77x = 208,593,866.25 × 84,178,509.14 - Step 4: Simplify right side
151,164,612.77x = 17,559,120,677,195,046 - Step 5: Solve for x
x = 17,559,120,677,195,046/151,164,612.77 - Step 6: Final answer
x = 116,158,936.65
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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.