Finding the Fourth Proportional to 2,649,318,133.20, 3,973,977,199.80 and 2,631,178,280.40
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Solution
The fourth proportional to 2,649,318,133.20, 3,973,977,199.80 and 2,631,178,280.40 is: 3,946,767,420.60
Step by Step Solution
- Step 1: Write the proportion equation
2,649,318,133.20 : 3,973,977,199.80 = 2,631,178,280.40 : x - Step 2: Convert to fraction form
2,649,318,133.20/3,973,977,199.80 = 2,631,178,280.40/x - Step 3: Cross multiply
2,649,318,133.20x = 3,973,977,199.80 × 2,631,178,280.40 - Step 4: Simplify right side
2,649,318,133.20x = 10,456,242,494,918,572,032 - Step 5: Solve for x
x = 10,456,242,494,918,572,032/2,649,318,133.20 - Step 6: Final answer
x = 3,946,767,420.60
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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.