Finding the Fourth Proportional to 1,772,930,287.60, 2,659,395,431.40 and 545,939,306.80
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Solution
The fourth proportional to 1,772,930,287.60, 2,659,395,431.40 and 545,939,306.80 is: 818,908,960.20
Step by Step Solution
- Step 1: Write the proportion equation
1,772,930,287.60 : 2,659,395,431.40 = 545,939,306.80 : x - Step 2: Convert to fraction form
1,772,930,287.60/2,659,395,431.40 = 545,939,306.80/x - Step 3: Cross multiply
1,772,930,287.60x = 2,659,395,431.40 × 545,939,306.80 - Step 4: Simplify right side
1,772,930,287.60x = 1,451,868,498,325,602,816 - Step 5: Solve for x
x = 1,451,868,498,325,602,816/1,772,930,287.60 - Step 6: Final answer
x = 818,908,960.20
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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.