Finding the Fourth Proportional to 43,852,921.20, 65,779,381.80 and 40,983,139.80
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Solution
The fourth proportional to 43,852,921.20, 65,779,381.80 and 40,983,139.80 is: 61,474,709.70
Step by Step Solution
- Step 1: Write the proportion equation
43,852,921.20 : 65,779,381.80 = 40,983,139.80 : x - Step 2: Convert to fraction form
43,852,921.20/65,779,381.80 = 40,983,139.80/x - Step 3: Cross multiply
43,852,921.20x = 65,779,381.80 × 40,983,139.80 - Step 4: Simplify right side
43,852,921.20x = 2,695,845,600,266,975.50 - Step 5: Solve for x
x = 2,695,845,600,266,975.50/43,852,921.20 - Step 6: Final answer
x = 61,474,709.70
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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.