Finding the Fourth Proportional to 5,821,402,449.40, 8,732,103,674.10 and 2,140,146,071.80
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Solution
The fourth proportional to 5,821,402,449.40, 8,732,103,674.10 and 2,140,146,071.80 is: 3,210,219,107.70
Step by Step Solution
- Step 1: Write the proportion equation
5,821,402,449.40 : 8,732,103,674.10 = 2,140,146,071.80 : x - Step 2: Convert to fraction form
5,821,402,449.40/8,732,103,674.10 = 2,140,146,071.80/x - Step 3: Cross multiply
5,821,402,449.40x = 8,732,103,674.10 × 2,140,146,071.80 - Step 4: Simplify right side
5,821,402,449.40x = 18,687,977,376,675,463,168 - Step 5: Solve for x
x = 18,687,977,376,675,463,168/5,821,402,449.40 - Step 6: Final answer
x = 3,210,219,107.70
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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.