Finding the Fourth Proportional to 2,912,394,715.20, 4,368,592,072.80 and 842,184,014.40
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Solution
The fourth proportional to 2,912,394,715.20, 4,368,592,072.80 and 842,184,014.40 is: 1,263,276,021.60
Step by Step Solution
- Step 1: Write the proportion equation
2,912,394,715.20 : 4,368,592,072.80 = 842,184,014.40 : x - Step 2: Convert to fraction form
2,912,394,715.20/4,368,592,072.80 = 842,184,014.40/x - Step 3: Cross multiply
2,912,394,715.20x = 4,368,592,072.80 × 842,184,014.40 - Step 4: Simplify right side
2,912,394,715.20x = 3,679,158,409,146,721,280 - Step 5: Solve for x
x = 3,679,158,409,146,721,280/2,912,394,715.20 - Step 6: Final answer
x = 1,263,276,021.60
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1.5x scale
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.