Finding the Fourth Proportional to 66,296,257.91, 91,490,901.20 and 38,043,804.59
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Solution
The fourth proportional to 66,296,257.91, 91,490,901.20 and 38,043,804.59 is: 52,501,635.48
Step by Step Solution
- Step 1: Write the proportion equation
66,296,257.91 : 91,490,901.20 = 38,043,804.59 : x - Step 2: Convert to fraction form
66,296,257.91/91,490,901.20 = 38,043,804.59/x - Step 3: Cross multiply
66,296,257.91x = 91,490,901.20 × 38,043,804.59 - Step 4: Simplify right side
66,296,257.91x = 3,480,661,966,368,123 - Step 5: Solve for x
x = 3,480,661,966,368,123/66,296,257.91 - Step 6: Final answer
x = 52,501,635.48
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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.