Finding the Fourth Proportional to 20,130,680,892.99, 27,780,370,243.33 and 11,219,818,327.23
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Solution
The fourth proportional to 20,130,680,892.99, 27,780,370,243.33 and 11,219,818,327.23 is: 15,483,366,352.60
Step by Step Solution
- Step 1: Write the proportion equation
20,130,680,892.99 : 27,780,370,243.33 = 11,219,818,327.23 : x - Step 2: Convert to fraction form
20,130,680,892.99/27,780,370,243.33 = 11,219,818,327.23/x - Step 3: Cross multiply
20,130,680,892.99x = 27,780,370,243.33 × 11,219,818,327.23 - Step 4: Simplify right side
20,130,680,892.99x = 311,690,707,193,348,882,432 - Step 5: Solve for x
x = 311,690,707,193,348,882,432/20,130,680,892.99 - Step 6: Final answer
x = 15,483,366,352.60
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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.