Finding the Fourth Proportional to 8,117,991.60, 12,176,987.40 and 2,437,477.80
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Solution
The fourth proportional to 8,117,991.60, 12,176,987.40 and 2,437,477.80 is: 3,656,216.70
Step by Step Solution
- Step 1: Write the proportion equation
8,117,991.60 : 12,176,987.40 = 2,437,477.80 : x - Step 2: Convert to fraction form
8,117,991.60/12,176,987.40 = 2,437,477.80/x - Step 3: Cross multiply
8,117,991.60x = 12,176,987.40 × 2,437,477.80 - Step 4: Simplify right side
8,117,991.60x = 29,681,136,458,379.72 - Step 5: Solve for x
x = 29,681,136,458,379.72/8,117,991.60 - Step 6: Final answer
x = 3,656,216.70
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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.