Finding the Fourth Proportional to 1,999,882,431.12, 2,760,794,737.74 and 1,331,939,038.80
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Solution
The fourth proportional to 1,999,882,431.12, 2,760,794,737.74 and 1,331,939,038.80 is: 1,838,713,232.38
Step by Step Solution
- Step 1: Write the proportion equation
1,999,882,431.12 : 2,760,794,737.74 = 1,331,939,038.80 : x - Step 2: Convert to fraction form
1,999,882,431.12/2,760,794,737.74 = 1,331,939,038.80/x - Step 3: Cross multiply
1,999,882,431.12x = 2,760,794,737.74 × 1,331,939,038.80 - Step 4: Simplify right side
1,999,882,431.12x = 3,677,210,289,309,513,216 - Step 5: Solve for x
x = 3,677,210,289,309,513,216/1,999,882,431.12 - Step 6: Final answer
x = 1,838,713,232.38
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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.