Finding the Fourth Proportional to 258,129,823, 387,449,827.74 and 136,961,275
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Solution
The fourth proportional to 258,129,823, 387,449,827.74 and 136,961,275 is: 205,577,262.59
Step by Step Solution
- Step 1: Write the proportion equation
258,129,823 : 387,449,827.74 = 136,961,275 : x - Step 2: Convert to fraction form
258,129,823/387,449,827.74 = 136,961,275/x - Step 3: Cross multiply
258,129,823x = 387,449,827.74 × 136,961,275 - Step 4: Simplify right side
258,129,823x = 53,065,622,405,800,768 - Step 5: Solve for x
x = 53,065,622,405,800,768/258,129,823 - Step 6: Final answer
x = 205,577,262.59
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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.