Finding the Fourth Proportional to 782,977,659.68, 1,080,578,026.32 and 430,615,736.48
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Solution
The fourth proportional to 782,977,659.68, 1,080,578,026.32 and 430,615,736.48 is: 594,287,585.19
Step by Step Solution
- Step 1: Write the proportion equation
782,977,659.68 : 1,080,578,026.32 = 430,615,736.48 : x - Step 2: Convert to fraction form
782,977,659.68/1,080,578,026.32 = 430,615,736.48/x - Step 3: Cross multiply
782,977,659.68x = 1,080,578,026.32 × 430,615,736.48 - Step 4: Simplify right side
782,977,659.68x = 465,313,902,627,891,648 - Step 5: Solve for x
x = 465,313,902,627,891,648/782,977,659.68 - Step 6: Final answer
x = 594,287,585.19
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.