Finding the Fourth Proportional to 1,118,593,232.88, 1,543,840,489.56 and 673,006,971.12
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Solution
The fourth proportional to 1,118,593,232.88, 1,543,840,489.56 and 673,006,971.12 is: 928,859,017.94
Step by Step Solution
- Step 1: Write the proportion equation
1,118,593,232.88 : 1,543,840,489.56 = 673,006,971.12 : x - Step 2: Convert to fraction form
1,118,593,232.88/1,543,840,489.56 = 673,006,971.12/x - Step 3: Cross multiply
1,118,593,232.88x = 1,543,840,489.56 × 673,006,971.12 - Step 4: Simplify right side
1,118,593,232.88x = 1,039,015,411,771,193,600 - Step 5: Solve for x
x = 1,039,015,411,771,193,600/1,118,593,232.88 - Step 6: Final answer
x = 928,859,017.94
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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.