Finding the Fourth Proportional to 357,356,775.60, 493,164,311.76 and 198,593,589.84
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Solution
The fourth proportional to 357,356,775.60, 493,164,311.76 and 198,593,589.84 is: 274,065,801.30
Step by Step Solution
- Step 1: Write the proportion equation
357,356,775.60 : 493,164,311.76 = 198,593,589.84 : x - Step 2: Convert to fraction form
357,356,775.60/493,164,311.76 = 198,593,589.84/x - Step 3: Cross multiply
357,356,775.60x = 493,164,311.76 × 198,593,589.84 - Step 4: Simplify right side
357,356,775.60x = 97,939,271,053,391,328 - Step 5: Solve for x
x = 97,939,271,053,391,328/357,356,775.60 - Step 6: Final answer
x = 274,065,801.30
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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.