Finding the Fourth Proportional to 799,737,433.49, 1,199,658,786.80 and 209,542,124.81
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Solution
The fourth proportional to 799,737,433.49, 1,199,658,786.80 and 209,542,124.81 is: 314,326,978.71
Step by Step Solution
- Step 1: Write the proportion equation
799,737,433.49 : 1,199,658,786.80 = 209,542,124.81 : x - Step 2: Convert to fraction form
799,737,433.49/1,199,658,786.80 = 209,542,124.81/x - Step 3: Cross multiply
799,737,433.49x = 1,199,658,786.80 × 209,542,124.81 - Step 4: Simplify right side
799,737,433.49x = 251,379,051,233,058,784 - Step 5: Solve for x
x = 251,379,051,233,058,784/799,737,433.49 - Step 6: Final answer
x = 314,326,978.71
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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.