Finding the Fourth Proportional to 1,210,434,728.40, 1,815,652,092.60 and 797,186,206.80
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Solution
The fourth proportional to 1,210,434,728.40, 1,815,652,092.60 and 797,186,206.80 is: 1,195,779,310.20
Step by Step Solution
- Step 1: Write the proportion equation
1,210,434,728.40 : 1,815,652,092.60 = 797,186,206.80 : x - Step 2: Convert to fraction form
1,210,434,728.40/1,815,652,092.60 = 797,186,206.80/x - Step 3: Cross multiply
1,210,434,728.40x = 1,815,652,092.60 × 797,186,206.80 - Step 4: Simplify right side
1,210,434,728.40x = 1,447,412,804,568,276,224 - Step 5: Solve for x
x = 1,447,412,804,568,276,224/1,210,434,728.40 - Step 6: Final answer
x = 1,195,779,310.20
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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.