Finding the Fourth Proportional to 1,701,346,801.20, 2,552,020,201.80 and 408,882,289.20
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Solution
The fourth proportional to 1,701,346,801.20, 2,552,020,201.80 and 408,882,289.20 is: 613,323,433.80
Step by Step Solution
- Step 1: Write the proportion equation
1,701,346,801.20 : 2,552,020,201.80 = 408,882,289.20 : x - Step 2: Convert to fraction form
1,701,346,801.20/2,552,020,201.80 = 408,882,289.20/x - Step 3: Cross multiply
1,701,346,801.20x = 2,552,020,201.80 × 408,882,289.20 - Step 4: Simplify right side
1,701,346,801.20x = 1,043,475,862,196,630,016 - Step 5: Solve for x
x = 1,043,475,862,196,630,016/1,701,346,801.20 - Step 6: Final answer
x = 613,323,433.80
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Double scale
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Similar ratio
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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.