Finding the Fourth Proportional to 124,647,430.56, 172,022,355.20 and 68,891,652.80
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Solution
The fourth proportional to 124,647,430.56, 172,022,355.20 and 68,891,652.80 is: 95,075,400.39
Step by Step Solution
- Step 1: Write the proportion equation
124,647,430.56 : 172,022,355.20 = 68,891,652.80 : x - Step 2: Convert to fraction form
124,647,430.56/172,022,355.20 = 68,891,652.80/x - Step 3: Cross multiply
124,647,430.56x = 172,022,355.20 × 68,891,652.80 - Step 4: Simplify right side
124,647,430.56x = 11,850,904,368,276,674 - Step 5: Solve for x
x = 11,850,904,368,276,674/124,647,430.56 - Step 6: Final answer
x = 95,075,400.39
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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.