Finding the Fourth Proportional to 157,368,084.63, 217,168,165.99 and 86,802,112.32
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Solution
The fourth proportional to 157,368,084.63, 217,168,165.99 and 86,802,112.32 is: 119,787,030.39
Step by Step Solution
- Step 1: Write the proportion equation
157,368,084.63 : 217,168,165.99 = 86,802,112.32 : x - Step 2: Convert to fraction form
157,368,084.63/217,168,165.99 = 86,802,112.32/x - Step 3: Cross multiply
157,368,084.63x = 217,168,165.99 × 86,802,112.32 - Step 4: Simplify right side
157,368,084.63x = 18,850,655,536,592,384 - Step 5: Solve for x
x = 18,850,655,536,592,384/157,368,084.63 - Step 6: Final answer
x = 119,787,030.39
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1.5x scale
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.