Finding the Fourth Proportional to 56,431,099.47, 77,868,690.90 and 31,646,185.98
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Solution
The fourth proportional to 56,431,099.47, 77,868,690.90 and 31,646,185.98 is: 43,668,244.95
Step by Step Solution
- Step 1: Write the proportion equation
56,431,099.47 : 77,868,690.90 = 31,646,185.98 : x - Step 2: Convert to fraction form
56,431,099.47/77,868,690.90 = 31,646,185.98/x - Step 3: Cross multiply
56,431,099.47x = 77,868,690.90 × 31,646,185.98 - Step 4: Simplify right side
56,431,099.47x = 2,464,247,074,240,534 - Step 5: Solve for x
x = 2,464,247,074,240,534/56,431,099.47 - Step 6: Final answer
x = 43,668,244.95
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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.