Finding the Third Proportional to 640,518,620 and 1,398,485,944
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Solution
The third proportional to 640,518,620 and 1,398,485,944 is: 3,053,405,278.94
Step by Step Solution
- Step 1: Write the proportion equation
640,518,620 : 1,398,485,944 = 1,398,485,944 : x - Step 2: Convert to fraction form
640,518,620/1,398,485,944 = 1,398,485,944/x - Step 3: Cross multiply
640,518,620x = 1,398,485,944 × 1,398,485,944 - Step 4: Simplify right side
640,518,620x = 1,955,762,935,565,571,072 - Step 5: Solve for x
x = 1,955,762,935,565,571,072/640,518,620 - Step 6: Final answer
x = 3,053,405,278.94
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.