Finding the Fourth Proportional to 893,347,748.10, 1,340,021,622.15 and 686,723,487.30
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Solution
The fourth proportional to 893,347,748.10, 1,340,021,622.15 and 686,723,487.30 is: 1,030,085,230.95
Step by Step Solution
- Step 1: Write the proportion equation
893,347,748.10 : 1,340,021,622.15 = 686,723,487.30 : x - Step 2: Convert to fraction form
893,347,748.10/1,340,021,622.15 = 686,723,487.30/x - Step 3: Cross multiply
893,347,748.10x = 1,340,021,622.15 × 686,723,487.30 - Step 4: Simplify right side
893,347,748.10x = 920,224,321,420,250,880 - Step 5: Solve for x
x = 920,224,321,420,250,880/893,347,748.10 - Step 6: Final answer
x = 1,030,085,230.95
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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.