Finding the Fourth Proportional to 1,820,473,575.18, 2,512,257,900.76 and 985,107,109.74
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Solution
The fourth proportional to 1,820,473,575.18, 2,512,257,900.76 and 985,107,109.74 is: 1,359,450,174.55
Step by Step Solution
- Step 1: Write the proportion equation
1,820,473,575.18 : 2,512,257,900.76 = 985,107,109.74 : x - Step 2: Convert to fraction form
1,820,473,575.18/2,512,257,900.76 = 985,107,109.74/x - Step 3: Cross multiply
1,820,473,575.18x = 2,512,257,900.76 × 985,107,109.74 - Step 4: Simplify right side
1,820,473,575.18x = 2,474,843,119,539,163,648 - Step 5: Solve for x
x = 2,474,843,119,539,163,648/1,820,473,575.18 - Step 6: Final answer
x = 1,359,450,174.55
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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.