Finding the Fourth Proportional to 67,806,928.40, 101,766,379.80 and 31,471,235.60
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Solution
The fourth proportional to 67,806,928.40, 101,766,379.80 and 31,471,235.60 is: 47,232,838.74
Step by Step Solution
- Step 1: Write the proportion equation
67,806,928.40 : 101,766,379.80 = 31,471,235.60 : x - Step 2: Convert to fraction form
67,806,928.40/101,766,379.80 = 31,471,235.60/x - Step 3: Cross multiply
67,806,928.40x = 101,766,379.80 × 31,471,235.60 - Step 4: Simplify right side
67,806,928.40x = 3,202,713,714,844,881 - Step 5: Solve for x
x = 3,202,713,714,844,881/67,806,928.40 - Step 6: Final answer
x = 47,232,838.74
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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.