Finding the Fourth Proportional to 701,689,248.68, 1,053,568,549.91 and 391,403,102.87
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Solution
The fourth proportional to 701,689,248.68, 1,053,568,549.91 and 391,403,102.87 is: 587,681,798.32
Step by Step Solution
- Step 1: Write the proportion equation
701,689,248.68 : 1,053,568,549.91 = 391,403,102.87 : x - Step 2: Convert to fraction form
701,689,248.68/1,053,568,549.91 = 391,403,102.87/x - Step 3: Cross multiply
701,689,248.68x = 1,053,568,549.91 × 391,403,102.87 - Step 4: Simplify right side
701,689,248.68x = 412,369,999,524,632,896 - Step 5: Solve for x
x = 412,369,999,524,632,896/701,689,248.68 - Step 6: Final answer
x = 587,681,798.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.