Finding the Fourth Proportional to 165,888,141.80, 248,832,212.70 and 122,889,972.20
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Solution
The fourth proportional to 165,888,141.80, 248,832,212.70 and 122,889,972.20 is: 184,334,958.30
Step by Step Solution
- Step 1: Write the proportion equation
165,888,141.80 : 248,832,212.70 = 122,889,972.20 : x - Step 2: Convert to fraction form
165,888,141.80/248,832,212.70 = 122,889,972.20/x - Step 3: Cross multiply
165,888,141.80x = 248,832,212.70 × 122,889,972.20 - Step 4: Simplify right side
165,888,141.80x = 30,578,983,701,167,488 - Step 5: Solve for x
x = 30,578,983,701,167,488/165,888,141.80 - Step 6: Final answer
x = 184,334,958.30
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.