Finding the Fourth Proportional to 7,852,912.60, 11,779,368.90 and 4,829,603.80
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Solution
The fourth proportional to 7,852,912.60, 11,779,368.90 and 4,829,603.80 is: 7,244,405.70
Step by Step Solution
- Step 1: Write the proportion equation
7,852,912.60 : 11,779,368.90 = 4,829,603.80 : x - Step 2: Convert to fraction form
7,852,912.60/11,779,368.90 = 4,829,603.80/x - Step 3: Cross multiply
7,852,912.60x = 11,779,368.90 × 4,829,603.80 - Step 4: Simplify right side
7,852,912.60x = 56,889,684,801,041.82 - Step 5: Solve for x
x = 56,889,684,801,041.82/7,852,912.60 - Step 6: Final answer
x = 7,244,405.70
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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.