Finding the Fourth Proportional to 7,772,639.90, 11,658,959.85 and 2,453,164.70
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Solution
The fourth proportional to 7,772,639.90, 11,658,959.85 and 2,453,164.70 is: 3,679,747.05
Step by Step Solution
- Step 1: Write the proportion equation
7,772,639.90 : 11,658,959.85 = 2,453,164.70 : x - Step 2: Convert to fraction form
7,772,639.90/11,658,959.85 = 2,453,164.70/x - Step 3: Cross multiply
7,772,639.90x = 11,658,959.85 × 2,453,164.70 - Step 4: Simplify right side
7,772,639.90x = 28,601,348,742,737.30 - Step 5: Solve for x
x = 28,601,348,742,737.30/7,772,639.90 - Step 6: Final answer
x = 3,679,747.05
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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.