Finding the Fourth Proportional to 143,346,489.63, 197,833,334.01 and 87,624,526.96
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Solution
The fourth proportional to 143,346,489.63, 197,833,334.01 and 87,624,526.96 is: 120,931,125.38
Step by Step Solution
- Step 1: Write the proportion equation
143,346,489.63 : 197,833,334.01 = 87,624,526.96 : x - Step 2: Convert to fraction form
143,346,489.63/197,833,334.01 = 87,624,526.96/x - Step 3: Cross multiply
143,346,489.63x = 197,833,334.01 × 87,624,526.96 - Step 4: Simplify right side
143,346,489.63x = 17,335,052,309,545,928 - Step 5: Solve for x
x = 17,335,052,309,545,928/143,346,489.63 - Step 6: Final answer
x = 120,931,125.38
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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.