Finding the Fourth Proportional to 1,027,063,889.75, 1,417,348,167.99 and 587,040,189.59
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Solution
The fourth proportional to 1,027,063,889.75, 1,417,348,167.99 and 587,040,189.59 is: 810,115,461.71
Step by Step Solution
- Step 1: Write the proportion equation
1,027,063,889.75 : 1,417,348,167.99 = 587,040,189.59 : x - Step 2: Convert to fraction form
1,027,063,889.75/1,417,348,167.99 = 587,040,189.59/x - Step 3: Cross multiply
1,027,063,889.75x = 1,417,348,167.99 × 587,040,189.59 - Step 4: Simplify right side
1,027,063,889.75x = 832,040,337,251,888,768 - Step 5: Solve for x
x = 832,040,337,251,888,768/1,027,063,889.75 - Step 6: Final answer
x = 810,115,461.71
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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.