Finding the Fourth Proportional to 551,919,986.59, 828,454,198.88 and 406,517,728.99
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Solution
The fourth proportional to 551,919,986.59, 828,454,198.88 and 406,517,728.99 is: 610,199,535.59
Step by Step Solution
- Step 1: Write the proportion equation
551,919,986.59 : 828,454,198.88 = 406,517,728.99 : x - Step 2: Convert to fraction form
551,919,986.59/828,454,198.88 = 406,517,728.99/x - Step 3: Cross multiply
551,919,986.59x = 828,454,198.88 × 406,517,728.99 - Step 4: Simplify right side
551,919,986.59x = 336,781,319,500,927,424 - Step 5: Solve for x
x = 336,781,319,500,927,424/551,919,986.59 - Step 6: Final answer
x = 610,199,535.59
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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.