Finding the Fourth Proportional to 357,356,780.82, 493,164,319.01 and 198,593,595.05
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Solution
The fourth proportional to 357,356,780.82, 493,164,319.01 and 198,593,595.05 is: 274,065,808.50
Step by Step Solution
- Step 1: Write the proportion equation
357,356,780.82 : 493,164,319.01 = 198,593,595.05 : x - Step 2: Convert to fraction form
357,356,780.82/493,164,319.01 = 198,593,595.05/x - Step 3: Cross multiply
357,356,780.82x = 493,164,319.01 × 198,593,595.05 - Step 4: Simplify right side
357,356,780.82x = 97,939,275,059,122,160 - Step 5: Solve for x
x = 97,939,275,059,122,160/357,356,780.82 - Step 6: Final answer
x = 274,065,808.50
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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.