Finding the Fourth Proportional to 2,912,394,720.70, 4,368,592,081.05 and 842,184,019.90
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Solution
The fourth proportional to 2,912,394,720.70, 4,368,592,081.05 and 842,184,019.90 is: 1,263,276,029.85
Step by Step Solution
- Step 1: Write the proportion equation
2,912,394,720.70 : 4,368,592,081.05 = 842,184,019.90 : x - Step 2: Convert to fraction form
2,912,394,720.70/4,368,592,081.05 = 842,184,019.90/x - Step 3: Cross multiply
2,912,394,720.70x = 4,368,592,081.05 × 842,184,019.90 - Step 4: Simplify right side
2,912,394,720.70x = 3,679,158,440,121,995,776 - Step 5: Solve for x
x = 3,679,158,440,121,995,776/2,912,394,720.70 - Step 6: Final answer
x = 1,263,276,029.85
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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.