Finding the Fourth Proportional to 132,092,030.40, 198,138,045.60 and 91,781,246.40
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Solution
The fourth proportional to 132,092,030.40, 198,138,045.60 and 91,781,246.40 is: 137,671,869.60
Step by Step Solution
- Step 1: Write the proportion equation
132,092,030.40 : 198,138,045.60 = 91,781,246.40 : x - Step 2: Convert to fraction form
132,092,030.40/198,138,045.60 = 91,781,246.40/x - Step 3: Cross multiply
132,092,030.40x = 198,138,045.60 × 91,781,246.40 - Step 4: Simplify right side
132,092,030.40x = 18,185,356,784,428,036 - Step 5: Solve for x
x = 18,185,356,784,428,036/132,092,030.40 - Step 6: Final answer
x = 137,671,869.60
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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.