Finding the Fourth Proportional to 357,356,771.58, 493,164,306.22 and 198,593,585.82
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Solution
The fourth proportional to 357,356,771.58, 493,164,306.22 and 198,593,585.82 is: 274,065,795.75
Step by Step Solution
- Step 1: Write the proportion equation
357,356,771.58 : 493,164,306.22 = 198,593,585.82 : x - Step 2: Convert to fraction form
357,356,771.58/493,164,306.22 = 198,593,585.82/x - Step 3: Cross multiply
357,356,771.58x = 493,164,306.22 × 198,593,585.82 - Step 4: Simplify right side
357,356,771.58x = 97,939,267,970,662,336 - Step 5: Solve for x
x = 97,939,267,970,662,336/357,356,771.58 - Step 6: Final answer
x = 274,065,795.75
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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.