Finding the Fourth Proportional to 664,432,000.80, 996,648,001.20 and 392,334,208.80
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Solution
The fourth proportional to 664,432,000.80, 996,648,001.20 and 392,334,208.80 is: 588,501,313.20
Step by Step Solution
- Step 1: Write the proportion equation
664,432,000.80 : 996,648,001.20 = 392,334,208.80 : x - Step 2: Convert to fraction form
664,432,000.80/996,648,001.20 = 392,334,208.80/x - Step 3: Cross multiply
664,432,000.80x = 996,648,001.20 × 392,334,208.80 - Step 4: Simplify right side
664,432,000.80x = 391,019,105,002,903,488 - Step 5: Solve for x
x = 391,019,105,002,903,488/664,432,000.80 - Step 6: Final answer
x = 588,501,313.20
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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.