Finding the Fourth Proportional to 56,427,457.68, 77,870,744.82 and 31,653,136.26
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Solution
The fourth proportional to 56,427,457.68, 77,870,744.82 and 31,653,136.26 is: 43,681,806.66
Step by Step Solution
- Step 1: Write the proportion equation
56,427,457.68 : 77,870,744.82 = 31,653,136.26 : x - Step 2: Convert to fraction form
56,427,457.68/77,870,744.82 = 31,653,136.26/x - Step 3: Cross multiply
56,427,457.68x = 77,870,744.82 × 31,653,136.26 - Step 4: Simplify right side
56,427,457.68x = 2,464,853,296,455,149 - Step 5: Solve for x
x = 2,464,853,296,455,149/56,427,457.68 - Step 6: Final answer
x = 43,681,806.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.