Finding the Fourth Proportional to 1,530,291,712.80, 2,292,036,346.80 and 1,326,218,368.80
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Solution
The fourth proportional to 1,530,291,712.80, 2,292,036,346.80 and 1,326,218,368.80 is: 1,986,379,903.69
Step by Step Solution
- Step 1: Write the proportion equation
1,530,291,712.80 : 2,292,036,346.80 = 1,326,218,368.80 : x - Step 2: Convert to fraction form
1,530,291,712.80/2,292,036,346.80 = 1,326,218,368.80/x - Step 3: Cross multiply
1,530,291,712.80x = 2,292,036,346.80 × 1,326,218,368.80 - Step 4: Simplify right side
1,530,291,712.80x = 3,039,740,705,083,407,360 - Step 5: Solve for x
x = 3,039,740,705,083,407,360/1,530,291,712.80 - Step 6: Final answer
x = 1,986,379,903.69
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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.