Finding the Fourth Proportional to 7,889,501,465.20, 10,887,517,891.74 and 4,272,553,280.44
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Solution
The fourth proportional to 7,889,501,465.20, 10,887,517,891.74 and 4,272,553,280.44 is: 5,896,126,705.77
Step by Step Solution
- Step 1: Write the proportion equation
7,889,501,465.20 : 10,887,517,891.74 = 4,272,553,280.44 : x - Step 2: Convert to fraction form
7,889,501,465.20/10,887,517,891.74 = 4,272,553,280.44/x - Step 3: Cross multiply
7,889,501,465.20x = 10,887,517,891.74 × 4,272,553,280.44 - Step 4: Simplify right side
7,889,501,465.20x = 46,517,500,284,202,926,080 - Step 5: Solve for x
x = 46,517,500,284,202,926,080/7,889,501,465.20 - Step 6: Final answer
x = 5,896,126,705.77
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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.