Finding the Fourth Proportional to 869,256,479.60, 1,303,436,821.80 and 323,717,202.80
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Solution
The fourth proportional to 869,256,479.60, 1,303,436,821.80 and 323,717,202.80 is: 485,409,004.00
Step by Step Solution
- Step 1: Write the proportion equation
869,256,479.60 : 1,303,436,821.80 = 323,717,202.80 : x - Step 2: Convert to fraction form
869,256,479.60/1,303,436,821.80 = 323,717,202.80/x - Step 3: Cross multiply
869,256,479.60x = 1,303,436,821.80 × 323,717,202.80 - Step 4: Simplify right side
869,256,479.60x = 421,944,921,979,618,048 - Step 5: Solve for x
x = 421,944,921,979,618,048/869,256,479.60 - Step 6: Final answer
x = 485,409,004.00
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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.