Finding the Fourth Proportional to 931,040,391.24, 1,284,893,089.11 and 513,351,384.84
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Solution
The fourth proportional to 931,040,391.24, 1,284,893,089.11 and 513,351,384.84 is: 708,456,531.93
Step by Step Solution
- Step 1: Write the proportion equation
931,040,391.24 : 1,284,893,089.11 = 513,351,384.84 : x - Step 2: Convert to fraction form
931,040,391.24/1,284,893,089.11 = 513,351,384.84/x - Step 3: Cross multiply
931,040,391.24x = 1,284,893,089.11 × 513,351,384.84 - Step 4: Simplify right side
931,040,391.24x = 659,601,646,665,963,904 - Step 5: Solve for x
x = 659,601,646,665,963,904/931,040,391.24 - Step 6: Final answer
x = 708,456,531.93
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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.