Finding the Fourth Proportional to 77,170,055.24, 106,490,770.44 and 45,809,446.70
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Solution
The fourth proportional to 77,170,055.24, 106,490,770.44 and 45,809,446.70 is: 63,214,717.90
Step by Step Solution
- Step 1: Write the proportion equation
77,170,055.24 : 106,490,770.44 = 45,809,446.70 : x - Step 2: Convert to fraction form
77,170,055.24/106,490,770.44 = 45,809,446.70/x - Step 3: Cross multiply
77,170,055.24x = 106,490,770.44 × 45,809,446.70 - Step 4: Simplify right side
77,170,055.24x = 4,878,283,272,513,116 - Step 5: Solve for x
x = 4,878,283,272,513,116/77,170,055.24 - Step 6: Final answer
x = 63,214,717.90
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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.