Finding the Fourth Proportional to 1,276,080,444.16, 1,914,135,907.20 and 355,900,796.80
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Solution
The fourth proportional to 1,276,080,444.16, 1,914,135,907.20 and 355,900,796.80 is: 533,855,445.92
Step by Step Solution
- Step 1: Write the proportion equation
1,276,080,444.16 : 1,914,135,907.20 = 355,900,796.80 : x - Step 2: Convert to fraction form
1,276,080,444.16/1,914,135,907.20 = 355,900,796.80/x - Step 3: Cross multiply
1,276,080,444.16x = 1,914,135,907.20 × 355,900,796.80 - Step 4: Simplify right side
1,276,080,444.16x = 681,242,494,549,833,088 - Step 5: Solve for x
x = 681,242,494,549,833,088/1,276,080,444.16 - Step 6: Final answer
x = 533,855,445.92
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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.