Finding the Fourth Proportional to 664,432,835.10, 996,649,252.65 and 319,303,239.90
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Solution
The fourth proportional to 664,432,835.10, 996,649,252.65 and 319,303,239.90 is: 478,954,859.85
Step by Step Solution
- Step 1: Write the proportion equation
664,432,835.10 : 996,649,252.65 = 319,303,239.90 : x - Step 2: Convert to fraction form
664,432,835.10/996,649,252.65 = 319,303,239.90/x - Step 3: Cross multiply
664,432,835.10x = 996,649,252.65 × 319,303,239.90 - Step 4: Simplify right side
664,432,835.10x = 318,233,335,415,058,624 - Step 5: Solve for x
x = 318,233,335,415,058,624/664,432,835.10 - Step 6: Final answer
x = 478,954,859.85
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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.