Finding the Fourth Proportional to 2,936,745,919.20, 4,405,118,878.80 and 2,211,151,807.20
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Solution
The fourth proportional to 2,936,745,919.20, 4,405,118,878.80 and 2,211,151,807.20 is: 3,316,727,710.80
Step by Step Solution
- Step 1: Write the proportion equation
2,936,745,919.20 : 4,405,118,878.80 = 2,211,151,807.20 : x - Step 2: Convert to fraction form
2,936,745,919.20/4,405,118,878.80 = 2,211,151,807.20/x - Step 3: Cross multiply
2,936,745,919.20x = 4,405,118,878.80 × 2,211,151,807.20 - Step 4: Simplify right side
2,936,745,919.20x = 9,740,386,569,789,456,384 - Step 5: Solve for x
x = 9,740,386,569,789,456,384/2,936,745,919.20 - Step 6: Final answer
x = 3,316,727,710.80
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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.