Finding the Fourth Proportional to 664,368,298.80, 996,552,448.20 and 276,947,809.80
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Solution
The fourth proportional to 664,368,298.80, 996,552,448.20 and 276,947,809.80 is: 415,421,714.70
Step by Step Solution
- Step 1: Write the proportion equation
664,368,298.80 : 996,552,448.20 = 276,947,809.80 : x - Step 2: Convert to fraction form
664,368,298.80/996,552,448.20 = 276,947,809.80/x - Step 3: Cross multiply
664,368,298.80x = 996,552,448.20 × 276,947,809.80 - Step 4: Simplify right side
664,368,298.80x = 275,993,017,879,817,984 - Step 5: Solve for x
x = 275,993,017,879,817,984/664,368,298.80 - Step 6: Final answer
x = 415,421,714.70
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Similar ratio
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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.