Finding the Fourth Proportional to 38,655,298.20, 57,989,945.70 and 19,437,691.80
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Solution
The fourth proportional to 38,655,298.20, 57,989,945.70 and 19,437,691.80 is: 29,160,056.82
Step by Step Solution
- Step 1: Write the proportion equation
38,655,298.20 : 57,989,945.70 = 19,437,691.80 : x - Step 2: Convert to fraction form
38,655,298.20/57,989,945.70 = 19,437,691.80/x - Step 3: Cross multiply
38,655,298.20x = 57,989,945.70 × 19,437,691.80 - Step 4: Simplify right side
38,655,298.20x = 1,127,190,692,015,335.25 - Step 5: Solve for x
x = 1,127,190,692,015,335.25/38,655,298.20 - Step 6: Final answer
x = 29,160,056.82
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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.