Finding the Fourth Proportional to 638,480,226.84, 881,102,323.32 and 345,124,794.84
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Solution
The fourth proportional to 638,480,226.84, 881,102,323.32 and 345,124,794.84 is: 476,272,006.22
Step by Step Solution
- Step 1: Write the proportion equation
638,480,226.84 : 881,102,323.32 = 345,124,794.84 : x - Step 2: Convert to fraction form
638,480,226.84/881,102,323.32 = 345,124,794.84/x - Step 3: Cross multiply
638,480,226.84x = 881,102,323.32 × 345,124,794.84 - Step 4: Simplify right side
638,480,226.84x = 304,090,258,568,862,336 - Step 5: Solve for x
x = 304,090,258,568,862,336/638,480,226.84 - Step 6: Final answer
x = 476,272,006.22
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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.