Finding the Fourth Proportional to 422,934,828.84, 634,401,370.80 and 238,618,634.49
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Solution
The fourth proportional to 422,934,828.84, 634,401,370.80 and 238,618,634.49 is: 357,927,459.50
Step by Step Solution
- Step 1: Write the proportion equation
422,934,828.84 : 634,401,370.80 = 238,618,634.49 : x - Step 2: Convert to fraction form
422,934,828.84/634,401,370.80 = 238,618,634.49/x - Step 3: Cross multiply
422,934,828.84x = 634,401,370.80 × 238,618,634.49 - Step 4: Simplify right side
422,934,828.84x = 151,379,988,818,880,160 - Step 5: Solve for x
x = 151,379,988,818,880,160/422,934,828.84 - Step 6: Final answer
x = 357,927,459.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.