Finding the Fourth Proportional to 639,821,728.05, 959,732,592.08 and 589,433,248.05
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Solution
The fourth proportional to 639,821,728.05, 959,732,592.08 and 589,433,248.05 is: 884,149,872.08
Step by Step Solution
- Step 1: Write the proportion equation
639,821,728.05 : 959,732,592.08 = 589,433,248.05 : x - Step 2: Convert to fraction form
639,821,728.05/959,732,592.08 = 589,433,248.05/x - Step 3: Cross multiply
639,821,728.05x = 959,732,592.08 × 589,433,248.05 - Step 4: Simplify right side
639,821,728.05x = 565,698,299,006,212,928 - Step 5: Solve for x
x = 565,698,299,006,212,928/639,821,728.05 - Step 6: Final answer
x = 884,149,872.08
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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.