Finding the Fourth Proportional to 1,614,820,056.75, 2,228,452,575.12 and 872,264,126.79
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Solution
The fourth proportional to 1,614,820,056.75, 2,228,452,575.12 and 872,264,126.79 is: 1,203,724,979.39
Step by Step Solution
- Step 1: Write the proportion equation
1,614,820,056.75 : 2,228,452,575.12 = 872,264,126.79 : x - Step 2: Convert to fraction form
1,614,820,056.75/2,228,452,575.12 = 872,264,126.79/x - Step 3: Cross multiply
1,614,820,056.75x = 2,228,452,575.12 × 872,264,126.79 - Step 4: Simplify right side
1,614,820,056.75x = 1,943,799,239,529,973,504 - Step 5: Solve for x
x = 1,943,799,239,529,973,504/1,614,820,056.75 - Step 6: Final answer
x = 1,203,724,979.39
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Double scale
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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.