Finding the Fourth Proportional to 34,318,871.47, 47,348,519.79 and 19,432,164.70
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Solution
The fourth proportional to 34,318,871.47, 47,348,519.79 and 19,432,164.70 is: 26,809,862.78
Step by Step Solution
- Step 1: Write the proportion equation
34,318,871.47 : 47,348,519.79 = 19,432,164.70 : x - Step 2: Convert to fraction form
34,318,871.47/47,348,519.79 = 19,432,164.70/x - Step 3: Cross multiply
34,318,871.47x = 47,348,519.79 × 19,432,164.70 - Step 4: Simplify right side
34,318,871.47x = 920,084,234,860,489.38 - Step 5: Solve for x
x = 920,084,234,860,489.38/34,318,871.47 - Step 6: Final answer
x = 26,809,862.78
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1.5x scale
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.