Finding the Fourth Proportional to 638,442,904.05, 957,664,356.08 and 638,442,904.05
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Solution
The fourth proportional to 638,442,904.05, 957,664,356.08 and 638,442,904.05 is: 957,664,356.08
Step by Step Solution
- Step 1: Write the proportion equation
638,442,904.05 : 957,664,356.08 = 638,442,904.05 : x - Step 2: Convert to fraction form
638,442,904.05/957,664,356.08 = 638,442,904.05/x - Step 3: Cross multiply
638,442,904.05x = 957,664,356.08 × 638,442,904.05 - Step 4: Simplify right side
638,442,904.05x = 611,414,012,597,696,256 - Step 5: Solve for x
x = 611,414,012,597,696,256/638,442,904.05 - Step 6: Final answer
x = 957,664,356.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.