Finding the Fourth Proportional to 155,358,371.76, 214,395,007.68 and 84,794,632.08
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Solution
The fourth proportional to 155,358,371.76, 214,395,007.68 and 84,794,632.08 is: 117,016,840.42
Step by Step Solution
- Step 1: Write the proportion equation
155,358,371.76 : 214,395,007.68 = 84,794,632.08 : x - Step 2: Convert to fraction form
155,358,371.76/214,395,007.68 = 84,794,632.08/x - Step 3: Cross multiply
155,358,371.76x = 214,395,007.68 × 84,794,632.08 - Step 4: Simplify right side
155,358,371.76x = 18,179,545,796,014,376 - Step 5: Solve for x
x = 18,179,545,796,014,376/155,358,371.76 - Step 6: Final answer
x = 117,016,840.42
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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.