Finding the Fourth Proportional to 1,052,631,128.74, 1,452,573,408.38 and 576,229,337.14
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Solution
The fourth proportional to 1,052,631,128.74, 1,452,573,408.38 and 576,229,337.14 is: 795,164,981.73
Step by Step Solution
- Step 1: Write the proportion equation
1,052,631,128.74 : 1,452,573,408.38 = 576,229,337.14 : x - Step 2: Convert to fraction form
1,052,631,128.74/1,452,573,408.38 = 576,229,337.14/x - Step 3: Cross multiply
1,052,631,128.74x = 1,452,573,408.38 × 576,229,337.14 - Step 4: Simplify right side
1,052,631,128.74x = 837,015,412,257,997,952 - Step 5: Solve for x
x = 837,015,412,257,997,952/1,052,631,128.74 - Step 6: Final answer
x = 795,164,981.73
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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.