Finding the Fourth Proportional to 902,876,777.31, 1,245,974,365.98 and 506,420,954.79
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Solution
The fourth proportional to 902,876,777.31, 1,245,974,365.98 and 506,420,954.79 is: 698,863,393.00
Step by Step Solution
- Step 1: Write the proportion equation
902,876,777.31 : 1,245,974,365.98 = 506,420,954.79 : x - Step 2: Convert to fraction form
902,876,777.31/1,245,974,365.98 = 506,420,954.79/x - Step 3: Cross multiply
902,876,777.31x = 1,245,974,365.98 × 506,420,954.79 - Step 4: Simplify right side
902,876,777.31x = 630,987,528,058,784,128 - Step 5: Solve for x
x = 630,987,528,058,784,128/902,876,777.31 - Step 6: Final answer
x = 698,863,393.00
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1.5x scale
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.