Finding the Fourth Proportional to 478,224,108.30, 716,202,421.65 and 478,224,108.30
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Solution
The fourth proportional to 478,224,108.30, 716,202,421.65 and 478,224,108.30 is: 716,202,421.65
Step by Step Solution
- Step 1: Write the proportion equation
478,224,108.30 : 716,202,421.65 = 478,224,108.30 : x - Step 2: Convert to fraction form
478,224,108.30/716,202,421.65 = 478,224,108.30/x - Step 3: Cross multiply
478,224,108.30x = 716,202,421.65 × 478,224,108.30 - Step 4: Simplify right side
478,224,108.30x = 342,505,264,455,871,872 - Step 5: Solve for x
x = 342,505,264,455,871,872/478,224,108.30 - Step 6: Final answer
x = 716,202,421.65
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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.