Finding the Fourth Proportional to 64,743,611.20, 97,115,416.80 and 56,780,987.20
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Solution
The fourth proportional to 64,743,611.20, 97,115,416.80 and 56,780,987.20 is: 85,171,480.80
Step by Step Solution
- Step 1: Write the proportion equation
64,743,611.20 : 97,115,416.80 = 56,780,987.20 : x - Step 2: Convert to fraction form
64,743,611.20/97,115,416.80 = 56,780,987.20/x - Step 3: Cross multiply
64,743,611.20x = 97,115,416.80 × 56,780,987.20 - Step 4: Simplify right side
64,743,611.20x = 5,514,309,238,243,465 - Step 5: Solve for x
x = 5,514,309,238,243,465/64,743,611.20 - Step 6: Final answer
x = 85,171,480.80
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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.