Finding the Fourth Proportional to 579,704,199.76, 799,998,139.08 and 315,387,695.44
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Solution
The fourth proportional to 579,704,199.76, 799,998,139.08 and 315,387,695.44 is: 435,238,470.84
Step by Step Solution
- Step 1: Write the proportion equation
579,704,199.76 : 799,998,139.08 = 315,387,695.44 : x - Step 2: Convert to fraction form
579,704,199.76/799,998,139.08 = 315,387,695.44/x - Step 3: Cross multiply
579,704,199.76x = 799,998,139.08 × 315,387,695.44 - Step 4: Simplify right side
579,704,199.76x = 252,309,569,440,729,824 - Step 5: Solve for x
x = 252,309,569,440,729,824/579,704,199.76 - Step 6: Final answer
x = 435,238,470.84
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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.