Finding the Fourth Proportional to 1,165,040,138.40, 1,747,560,207.60 and 1,048,138,864.80
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Solution
The fourth proportional to 1,165,040,138.40, 1,747,560,207.60 and 1,048,138,864.80 is: 1,572,208,297.20
Step by Step Solution
- Step 1: Write the proportion equation
1,165,040,138.40 : 1,747,560,207.60 = 1,048,138,864.80 : x - Step 2: Convert to fraction form
1,165,040,138.40/1,747,560,207.60 = 1,048,138,864.80/x - Step 3: Cross multiply
1,165,040,138.40x = 1,747,560,207.60 × 1,048,138,864.80 - Step 4: Simplify right side
1,165,040,138.40x = 1,831,685,772,163,516,160 - Step 5: Solve for x
x = 1,831,685,772,163,516,160/1,165,040,138.40 - Step 6: Final answer
x = 1,572,208,297.20
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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.