Finding the Fourth Proportional to 354,881,846.02, 489,755,750.28 and 213,797,479.12
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Solution
The fourth proportional to 354,881,846.02, 489,755,750.28 and 213,797,479.12 is: 295,051,848.86
Step by Step Solution
- Step 1: Write the proportion equation
354,881,846.02 : 489,755,750.28 = 213,797,479.12 : x - Step 2: Convert to fraction form
354,881,846.02/489,755,750.28 = 213,797,479.12/x - Step 3: Cross multiply
354,881,846.02x = 489,755,750.28 × 213,797,479.12 - Step 4: Simplify right side
354,881,846.02x = 104,708,544,794,388,224 - Step 5: Solve for x
x = 104,708,544,794,388,224/354,881,846.02 - Step 6: Final answer
x = 295,051,848.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.