Finding the Fourth Proportional to 561,456,145.20, 842,184,217.80 and 197,829,649.20
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Solution
The fourth proportional to 561,456,145.20, 842,184,217.80 and 197,829,649.20 is: 296,744,473.80
Step by Step Solution
- Step 1: Write the proportion equation
561,456,145.20 : 842,184,217.80 = 197,829,649.20 : x - Step 2: Convert to fraction form
561,456,145.20/842,184,217.80 = 197,829,649.20/x - Step 3: Cross multiply
561,456,145.20x = 842,184,217.80 × 197,829,649.20 - Step 4: Simplify right side
561,456,145.20x = 166,609,008,369,150,368 - Step 5: Solve for x
x = 166,609,008,369,150,368/561,456,145.20 - Step 6: Final answer
x = 296,744,473.80
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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.