Finding the Fourth Proportional to 8,691,443,251.12, 11,994,481,081.88 and 4,881,636,551.68
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Solution
The fourth proportional to 8,691,443,251.12, 11,994,481,081.88 and 4,881,636,551.68 is: 6,736,820,983.12
Step by Step Solution
- Step 1: Write the proportion equation
8,691,443,251.12 : 11,994,481,081.88 = 4,881,636,551.68 : x - Step 2: Convert to fraction form
8,691,443,251.12/11,994,481,081.88 = 4,881,636,551.68/x - Step 3: Cross multiply
8,691,443,251.12x = 11,994,481,081.88 × 4,881,636,551.68 - Step 4: Simplify right side
8,691,443,251.12x = 58,552,697,267,739,680,768 - Step 5: Solve for x
x = 58,552,697,267,739,680,768/8,691,443,251.12 - Step 6: Final answer
x = 6,736,820,983.12
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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.