Finding the Fourth Proportional to 8,642,913,086.13, 11,920,639,415.38 and 7,439,302,852.12
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Solution
The fourth proportional to 8,642,913,086.13, 11,920,639,415.38 and 7,439,302,852.12 is: 10,260,573,711.45
Step by Step Solution
- Step 1: Write the proportion equation
8,642,913,086.13 : 11,920,639,415.38 = 7,439,302,852.12 : x - Step 2: Convert to fraction form
8,642,913,086.13/11,920,639,415.38 = 7,439,302,852.12/x - Step 3: Cross multiply
8,642,913,086.13x = 11,920,639,415.38 × 7,439,302,852.12 - Step 4: Simplify right side
8,642,913,086.13x = 88,681,246,801,930,518,528 - Step 5: Solve for x
x = 88,681,246,801,930,518,528/8,642,913,086.13 - Step 6: Final answer
x = 10,260,573,711.45
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.