Finding the Fourth Proportional to 68,197,876.80, 102,361,488.62 and 42,211,571.92
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Solution
The fourth proportional to 68,197,876.80, 102,361,488.62 and 42,211,571.92 is: 63,357,387.96
Step by Step Solution
- Step 1: Write the proportion equation
68,197,876.80 : 102,361,488.62 = 42,211,571.92 : x - Step 2: Convert to fraction form
68,197,876.80/102,361,488.62 = 42,211,571.92/x - Step 3: Cross multiply
68,197,876.80x = 102,361,488.62 × 42,211,571.92 - Step 4: Simplify right side
68,197,876.80x = 4,320,839,338,254,429.50 - Step 5: Solve for x
x = 4,320,839,338,254,429.50/68,197,876.80 - Step 6: Final answer
x = 63,357,387.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.