Finding the Fourth Proportional to 372,983,609.80, 559,475,414.70 and 291,354,272.20
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Solution
The fourth proportional to 372,983,609.80, 559,475,414.70 and 291,354,272.20 is: 437,031,408.30
Step by Step Solution
- Step 1: Write the proportion equation
372,983,609.80 : 559,475,414.70 = 291,354,272.20 : x - Step 2: Convert to fraction form
372,983,609.80/559,475,414.70 = 291,354,272.20/x - Step 3: Cross multiply
372,983,609.80x = 559,475,414.70 × 291,354,272.20 - Step 4: Simplify right side
372,983,609.80x = 163,005,552,263,711,680 - Step 5: Solve for x
x = 163,005,552,263,711,680/372,983,609.80 - Step 6: Final answer
x = 437,031,408.30
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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.