Finding the Fourth Proportional to 178,626,535.20, 267,939,802.80 and 87,927,271.20
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Solution
The fourth proportional to 178,626,535.20, 267,939,802.80 and 87,927,271.20 is: 131,890,906.80
Step by Step Solution
- Step 1: Write the proportion equation
178,626,535.20 : 267,939,802.80 = 87,927,271.20 : x - Step 2: Convert to fraction form
178,626,535.20/267,939,802.80 = 87,927,271.20/x - Step 3: Cross multiply
178,626,535.20x = 267,939,802.80 × 87,927,271.20 - Step 4: Simplify right side
178,626,535.20x = 23,559,215,706,070,120 - Step 5: Solve for x
x = 23,559,215,706,070,120/178,626,535.20 - Step 6: Final answer
x = 131,890,906.80
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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.