Finding the Fourth Proportional to 143,346,509.64, 197,833,361.64 and 87,624,546.96
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Solution
The fourth proportional to 143,346,509.64, 197,833,361.64 and 87,624,546.96 is: 120,931,152.99
Step by Step Solution
- Step 1: Write the proportion equation
143,346,509.64 : 197,833,361.64 = 87,624,546.96 : x - Step 2: Convert to fraction form
143,346,509.64/197,833,361.64 = 87,624,546.96/x - Step 3: Cross multiply
143,346,509.64x = 197,833,361.64 × 87,624,546.96 - Step 4: Simplify right side
143,346,509.64x = 17,335,058,687,278,840 - Step 5: Solve for x
x = 17,335,058,687,278,840/143,346,509.64 - Step 6: Final answer
x = 120,931,152.99
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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.