Finding the Fourth Proportional to 2,099,527,776.40, 3,149,291,664.60 and 1,987,287,437.20
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Solution
The fourth proportional to 2,099,527,776.40, 3,149,291,664.60 and 1,987,287,437.20 is: 2,980,931,155.80
Step by Step Solution
- Step 1: Write the proportion equation
2,099,527,776.40 : 3,149,291,664.60 = 1,987,287,437.20 : x - Step 2: Convert to fraction form
2,099,527,776.40/3,149,291,664.60 = 1,987,287,437.20/x - Step 3: Cross multiply
2,099,527,776.40x = 3,149,291,664.60 × 1,987,287,437.20 - Step 4: Simplify right side
2,099,527,776.40x = 6,258,547,761,138,255,872 - Step 5: Solve for x
x = 6,258,547,761,138,255,872/2,099,527,776.40 - Step 6: Final answer
x = 2,980,931,155.80
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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.