Finding the Fourth Proportional to 1,772,930,391.40, 2,659,395,587.10 and 1,192,455,101.80
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Solution
The fourth proportional to 1,772,930,391.40, 2,659,395,587.10 and 1,192,455,101.80 is: 1,788,682,652.70
Step by Step Solution
- Step 1: Write the proportion equation
1,772,930,391.40 : 2,659,395,587.10 = 1,192,455,101.80 : x - Step 2: Convert to fraction form
1,772,930,391.40/2,659,395,587.10 = 1,192,455,101.80/x - Step 3: Cross multiply
1,772,930,391.40x = 2,659,395,587.10 × 1,192,455,101.80 - Step 4: Simplify right side
1,772,930,391.40x = 3,171,209,835,541,800,960 - Step 5: Solve for x
x = 3,171,209,835,541,800,960/1,772,930,391.40 - Step 6: Final answer
x = 1,788,682,652.70
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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.