Finding the Fourth Proportional to 258,904,659.22, 388,354,330.71 and 149,660,318.66
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Solution
The fourth proportional to 258,904,659.22, 388,354,330.71 and 149,660,318.66 is: 224,488,941.45
Step by Step Solution
- Step 1: Write the proportion equation
258,904,659.22 : 388,354,330.71 = 149,660,318.66 : x - Step 2: Convert to fraction form
258,904,659.22/388,354,330.71 = 149,660,318.66/x - Step 3: Cross multiply
258,904,659.22x = 388,354,330.71 × 149,660,318.66 - Step 4: Simplify right side
258,904,659.22x = 58,121,232,885,107,848 - Step 5: Solve for x
x = 58,121,232,885,107,848/258,904,659.22 - Step 6: Final answer
x = 224,488,941.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.