Finding the Fourth Proportional to 2,120,571,716.12, 3,179,793,363.58 and 1,235,543,089.78
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Solution
The fourth proportional to 2,120,571,716.12, 3,179,793,363.58 and 1,235,543,089.78 is: 1,852,694,576.39
Step by Step Solution
- Step 1: Write the proportion equation
2,120,571,716.12 : 3,179,793,363.58 = 1,235,543,089.78 : x - Step 2: Convert to fraction form
2,120,571,716.12/3,179,793,363.58 = 1,235,543,089.78/x - Step 3: Cross multiply
2,120,571,716.12x = 3,179,793,363.58 × 1,235,543,089.78 - Step 4: Simplify right side
2,120,571,716.12x = 3,928,771,717,299,571,712 - Step 5: Solve for x
x = 3,928,771,717,299,571,712/2,120,571,716.12 - Step 6: Final answer
x = 1,852,694,576.39
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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.