Finding the Fourth Proportional to 491,181,601.80, 736,772,402.70 and 430,715,425.80
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Solution
The fourth proportional to 491,181,601.80, 736,772,402.70 and 430,715,425.80 is: 646,073,138.70
Step by Step Solution
- Step 1: Write the proportion equation
491,181,601.80 : 736,772,402.70 = 430,715,425.80 : x - Step 2: Convert to fraction form
491,181,601.80/736,772,402.70 = 430,715,425.80/x - Step 3: Cross multiply
491,181,601.80x = 736,772,402.70 × 430,715,425.80 - Step 4: Simplify right side
491,181,601.80x = 317,339,239,146,619,584 - Step 5: Solve for x
x = 317,339,239,146,619,584/491,181,601.80 - Step 6: Final answer
x = 646,073,138.70
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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.