Finding the Fourth Proportional to 2,129,934,207.18, 2,939,422,747.98 and 1,190,159,661.90
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Solution
The fourth proportional to 2,129,934,207.18, 2,939,422,747.98 and 1,190,159,661.90 is: 1,642,483,778.20
Step by Step Solution
- Step 1: Write the proportion equation
2,129,934,207.18 : 2,939,422,747.98 = 1,190,159,661.90 : x - Step 2: Convert to fraction form
2,129,934,207.18/2,939,422,747.98 = 1,190,159,661.90/x - Step 3: Cross multiply
2,129,934,207.18x = 2,939,422,747.98 × 1,190,159,661.90 - Step 4: Simplify right side
2,129,934,207.18x = 3,498,382,383,917,045,760 - Step 5: Solve for x
x = 3,498,382,383,917,045,760/2,129,934,207.18 - Step 6: Final answer
x = 1,642,483,778.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.