Finding the Fourth Proportional to 2,125,765,866.60, 3,188,648,799.90 and 1,345,185,325.80
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Solution
The fourth proportional to 2,125,765,866.60, 3,188,648,799.90 and 1,345,185,325.80 is: 2,017,777,988.70
Step by Step Solution
- Step 1: Write the proportion equation
2,125,765,866.60 : 3,188,648,799.90 = 1,345,185,325.80 : x - Step 2: Convert to fraction form
2,125,765,866.60/3,188,648,799.90 = 1,345,185,325.80/x - Step 3: Cross multiply
2,125,765,866.60x = 3,188,648,799.90 × 1,345,185,325.80 - Step 4: Simplify right side
2,125,765,866.60x = 4,289,323,574,755,260,416 - Step 5: Solve for x
x = 4,289,323,574,755,260,416/2,125,765,866.60 - Step 6: Final answer
x = 2,017,777,988.70
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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.