Finding the Fourth Proportional to 907,871,772.62, 1,252,824,336.51 and 505,964,135.07
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Solution
The fourth proportional to 907,871,772.62, 1,252,824,336.51 and 505,964,135.07 is: 698,208,933.16
Step by Step Solution
- Step 1: Write the proportion equation
907,871,772.62 : 1,252,824,336.51 = 505,964,135.07 : x - Step 2: Convert to fraction form
907,871,772.62/1,252,824,336.51 = 505,964,135.07/x - Step 3: Cross multiply
907,871,772.62x = 1,252,824,336.51 × 505,964,135.07 - Step 4: Simplify right side
907,871,772.62x = 633,884,181,808,134,912 - Step 5: Solve for x
x = 633,884,181,808,134,912/907,871,772.62 - Step 6: Final answer
x = 698,208,933.16
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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.