Finding the Fourth Proportional to 479,153,616.66, 661,232,432.19 and 259,137,042.66
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Solution
The fourth proportional to 479,153,616.66, 661,232,432.19 and 259,137,042.66 is: 357,609,357.48
Step by Step Solution
- Step 1: Write the proportion equation
479,153,616.66 : 661,232,432.19 = 259,137,042.66 : x - Step 2: Convert to fraction form
479,153,616.66/661,232,432.19 = 259,137,042.66/x - Step 3: Cross multiply
479,153,616.66x = 661,232,432.19 × 259,137,042.66 - Step 4: Simplify right side
479,153,616.66x = 171,349,816,989,567,360 - Step 5: Solve for x
x = 171,349,816,989,567,360/479,153,616.66 - Step 6: Final answer
x = 357,609,357.48
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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.