Finding the Fourth Proportional to 992,789,115.12, 1,487,246,343.60 and 773,412,263.04
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Solution
The fourth proportional to 992,789,115.12, 1,487,246,343.60 and 773,412,263.04 is: 1,158,609,157.56
Step by Step Solution
- Step 1: Write the proportion equation
992,789,115.12 : 1,487,246,343.60 = 773,412,263.04 : x - Step 2: Convert to fraction form
992,789,115.12/1,487,246,343.60 = 773,412,263.04/x - Step 3: Cross multiply
992,789,115.12x = 1,487,246,343.60 × 773,412,263.04 - Step 4: Simplify right side
992,789,115.12x = 1,150,254,560,301,641,344 - Step 5: Solve for x
x = 1,150,254,560,301,641,344/992,789,115.12 - Step 6: Final answer
x = 1,158,609,157.56
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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.