Finding the Fourth Proportional to 77,168,792.58, 106,490,178.44 and 43,677,552.94
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Solution
The fourth proportional to 77,168,792.58, 106,490,178.44 and 43,677,552.94 is: 60,273,463.55
Step by Step Solution
- Step 1: Write the proportion equation
77,168,792.58 : 106,490,178.44 = 43,677,552.94 : x - Step 2: Convert to fraction form
77,168,792.58/106,490,178.44 = 43,677,552.94/x - Step 3: Cross multiply
77,168,792.58x = 106,490,178.44 × 43,677,552.94 - Step 4: Simplify right side
77,168,792.58x = 4,651,230,406,403,146 - Step 5: Solve for x
x = 4,651,230,406,403,146/77,168,792.58 - Step 6: Final answer
x = 60,273,463.55
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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.