Finding the Fourth Proportional to 8,276,688,118.30, 12,415,032,177.45 and 7,378,765,404.70
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Solution
The fourth proportional to 8,276,688,118.30, 12,415,032,177.45 and 7,378,765,404.70 is: 11,068,148,107.05
Step by Step Solution
- Step 1: Write the proportion equation
8,276,688,118.30 : 12,415,032,177.45 = 7,378,765,404.70 : x - Step 2: Convert to fraction form
8,276,688,118.30/12,415,032,177.45 = 7,378,765,404.70/x - Step 3: Cross multiply
8,276,688,118.30x = 12,415,032,177.45 × 7,378,765,404.70 - Step 4: Simplify right side
8,276,688,118.30x = 91,607,609,929,205,366,784 - Step 5: Solve for x
x = 91,607,609,929,205,366,784/8,276,688,118.30 - Step 6: Final answer
x = 11,068,148,107.05
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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.