Finding the Fourth Proportional to 439,858,248.34, 659,930,693.91 and 209,797,395.70
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Solution
The fourth proportional to 439,858,248.34, 659,930,693.91 and 209,797,395.70 is: 314,764,452.97
Step by Step Solution
- Step 1: Write the proportion equation
439,858,248.34 : 659,930,693.91 = 209,797,395.70 : x - Step 2: Convert to fraction form
439,858,248.34/659,930,693.91 = 209,797,395.70/x - Step 3: Cross multiply
439,858,248.34x = 659,930,693.91 × 209,797,395.70 - Step 4: Simplify right side
439,858,248.34x = 138,451,740,924,811,840 - Step 5: Solve for x
x = 138,451,740,924,811,840/439,858,248.34 - Step 6: Final answer
x = 314,764,452.97
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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.