Finding the Fourth Proportional to 7,488,276.90, 11,232,415.35 and 7,338,977.70
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Solution
The fourth proportional to 7,488,276.90, 11,232,415.35 and 7,338,977.70 is: 11,008,466.55
Step by Step Solution
- Step 1: Write the proportion equation
7,488,276.90 : 11,232,415.35 = 7,338,977.70 : x - Step 2: Convert to fraction form
7,488,276.90/11,232,415.35 = 7,338,977.70/x - Step 3: Cross multiply
7,488,276.90x = 11,232,415.35 × 7,338,977.70 - Step 4: Simplify right side
7,488,276.90x = 82,434,445,770,787.69 - Step 5: Solve for x
x = 82,434,445,770,787.69/7,488,276.90 - Step 6: Final answer
x = 11,008,466.55
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Double scale
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Similar ratio
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1.5x scale
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.