Finding the Fourth Proportional to 315,524,738.70, 473,287,108.05 and 145,655,426.70
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Solution
The fourth proportional to 315,524,738.70, 473,287,108.05 and 145,655,426.70 is: 218,483,140.05
Step by Step Solution
- Step 1: Write the proportion equation
315,524,738.70 : 473,287,108.05 = 145,655,426.70 : x - Step 2: Convert to fraction form
315,524,738.70/473,287,108.05 = 145,655,426.70/x - Step 3: Cross multiply
315,524,738.70x = 473,287,108.05 × 145,655,426.70 - Step 4: Simplify right side
315,524,738.70x = 68,936,835,674,631,752 - Step 5: Solve for x
x = 68,936,835,674,631,752/315,524,738.70 - Step 6: Final answer
x = 218,483,140.05
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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.