Finding the Fourth Proportional to 1,443,722,643.70, 2,165,583,965.55 and 353,205,711.70
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Solution
The fourth proportional to 1,443,722,643.70, 2,165,583,965.55 and 353,205,711.70 is: 529,808,567.55
Step by Step Solution
- Step 1: Write the proportion equation
1,443,722,643.70 : 2,165,583,965.55 = 353,205,711.70 : x - Step 2: Convert to fraction form
1,443,722,643.70/2,165,583,965.55 = 353,205,711.70/x - Step 3: Cross multiply
1,443,722,643.70x = 2,165,583,965.55 × 353,205,711.70 - Step 4: Simplify right side
1,443,722,643.70x = 764,896,625,798,196,096 - Step 5: Solve for x
x = 764,896,625,798,196,096/1,443,722,643.70 - Step 6: Final answer
x = 529,808,567.55
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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.