Finding the Fourth Proportional to 787,680,514.13, 1,181,725,056.11 and 418,912,226.42
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Solution
The fourth proportional to 787,680,514.13, 1,181,725,056.11 and 418,912,226.42 is: 628,476,984.50
Step by Step Solution
- Step 1: Write the proportion equation
787,680,514.13 : 1,181,725,056.11 = 418,912,226.42 : x - Step 2: Convert to fraction form
787,680,514.13/1,181,725,056.11 = 418,912,226.42/x - Step 3: Cross multiply
787,680,514.13x = 1,181,725,056.11 × 418,912,226.42 - Step 4: Simplify right side
787,680,514.13x = 495,039,074,263,336,384 - Step 5: Solve for x
x = 495,039,074,263,336,384/787,680,514.13 - Step 6: Final answer
x = 628,476,984.50
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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.