Finding the Fourth Proportional to 257,486,626.80, 355,288,467.46 and 151,661,112.62
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Solution
The fourth proportional to 257,486,626.80, 355,288,467.46 and 151,661,112.62 is: 209,266,962.50
Step by Step Solution
- Step 1: Write the proportion equation
257,486,626.80 : 355,288,467.46 = 151,661,112.62 : x - Step 2: Convert to fraction form
257,486,626.80/355,288,467.46 = 151,661,112.62/x - Step 3: Cross multiply
257,486,626.80x = 355,288,467.46 × 151,661,112.62 - Step 4: Simplify right side
257,486,626.80x = 53,883,444,276,038,264 - Step 5: Solve for x
x = 53,883,444,276,038,264/257,486,626.80 - Step 6: Final answer
x = 209,266,962.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.