Finding the Fourth Proportional to 873,691,484.58, 1,310,542,125.75 and 291,424,132.08
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Solution
The fourth proportional to 873,691,484.58, 1,310,542,125.75 and 291,424,132.08 is: 437,137,832.17
Step by Step Solution
- Step 1: Write the proportion equation
873,691,484.58 : 1,310,542,125.75 = 291,424,132.08 : x - Step 2: Convert to fraction form
873,691,484.58/1,310,542,125.75 = 291,424,132.08/x - Step 3: Cross multiply
873,691,484.58x = 1,310,542,125.75 × 291,424,132.08 - Step 4: Simplify right side
873,691,484.58x = 381,923,601,550,971,968 - Step 5: Solve for x
x = 381,923,601,550,971,968/873,691,484.58 - Step 6: Final answer
x = 437,137,832.17
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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.