Finding the Fourth Proportional to 579,136,951.86, 799,203,315.71 and 314,803,217.63
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Solution
The fourth proportional to 579,136,951.86, 799,203,315.71 and 314,803,217.63 is: 434,425,353.99
Step by Step Solution
- Step 1: Write the proportion equation
579,136,951.86 : 799,203,315.71 = 314,803,217.63 : x - Step 2: Convert to fraction form
579,136,951.86/799,203,315.71 = 314,803,217.63/x - Step 3: Cross multiply
579,136,951.86x = 799,203,315.71 × 314,803,217.63 - Step 4: Simplify right side
579,136,951.86x = 251,591,775,320,502,720 - Step 5: Solve for x
x = 251,591,775,320,502,720/579,136,951.86 - Step 6: Final answer
x = 434,425,353.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.