Finding the Fourth Proportional to 212,947,412.79, 293,868,314.96 and 115,162,268.79
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Solution
The fourth proportional to 212,947,412.79, 293,868,314.96 and 115,162,268.79 is: 158,924,409.70
Step by Step Solution
- Step 1: Write the proportion equation
212,947,412.79 : 293,868,314.96 = 115,162,268.79 : x - Step 2: Convert to fraction form
212,947,412.79/293,868,314.96 = 115,162,268.79/x - Step 3: Cross multiply
212,947,412.79x = 293,868,314.96 × 115,162,268.79 - Step 4: Simplify right side
212,947,412.79x = 33,842,541,875,712,088 - Step 5: Solve for x
x = 33,842,541,875,712,088/212,947,412.79 - Step 6: Final answer
x = 158,924,409.70
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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.