Finding the Fourth Proportional to 84,071,963.59, 115,916,235.09 and 69,135,088.48
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Solution
The fourth proportional to 84,071,963.59, 115,916,235.09 and 69,135,088.48 is: 95,321,660.47
Step by Step Solution
- Step 1: Write the proportion equation
84,071,963.59 : 115,916,235.09 = 69,135,088.48 : x - Step 2: Convert to fraction form
84,071,963.59/115,916,235.09 = 69,135,088.48/x - Step 3: Cross multiply
84,071,963.59x = 115,916,235.09 × 69,135,088.48 - Step 4: Simplify right side
84,071,963.59x = 8,013,879,168,463,212 - Step 5: Solve for x
x = 8,013,879,168,463,212/84,071,963.59 - Step 6: Final answer
x = 95,321,660.47
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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.