Finding the Fourth Proportional to 2,279,226,231.41, 3,145,430,501.63 and 1,261,951,649.20
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Solution
The fourth proportional to 2,279,226,231.41, 3,145,430,501.63 and 1,261,951,649.20 is: 1,741,547,703.46
Step by Step Solution
- Step 1: Write the proportion equation
2,279,226,231.41 : 3,145,430,501.63 = 1,261,951,649.20 : x - Step 2: Convert to fraction form
2,279,226,231.41/3,145,430,501.63 = 1,261,951,649.20/x - Step 3: Cross multiply
2,279,226,231.41x = 3,145,430,501.63 × 1,261,951,649.20 - Step 4: Simplify right side
2,279,226,231.41x = 3,969,381,208,972,433,408 - Step 5: Solve for x
x = 3,969,381,208,972,433,408/2,279,226,231.41 - Step 6: Final answer
x = 1,741,547,703.46
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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.