Finding the Fourth Proportional to 408,227,216.07, 612,170,565.40 and 128,035,941.23
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Solution
The fourth proportional to 408,227,216.07, 612,170,565.40 and 128,035,941.23 is: 192,000,512.09
Step by Step Solution
- Step 1: Write the proportion equation
408,227,216.07 : 612,170,565.40 = 128,035,941.23 : x - Step 2: Convert to fraction form
408,227,216.07/612,170,565.40 = 128,035,941.23/x - Step 3: Cross multiply
408,227,216.07x = 612,170,565.40 × 128,035,941.23 - Step 4: Simplify right side
408,227,216.07x = 78,379,834,535,982,032 - Step 5: Solve for x
x = 78,379,834,535,982,032/408,227,216.07 - Step 6: Final answer
x = 192,000,512.09
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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.