Finding the Fourth Proportional to 81,897,386.48, 113,021,182.68 and 48,435,549.92
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Solution
The fourth proportional to 81,897,386.48, 113,021,182.68 and 48,435,549.92 is: 66,842,708.55
Step by Step Solution
- Step 1: Write the proportion equation
81,897,386.48 : 113,021,182.68 = 48,435,549.92 : x - Step 2: Convert to fraction form
81,897,386.48/113,021,182.68 = 48,435,549.92/x - Step 3: Cross multiply
81,897,386.48x = 113,021,182.68 × 48,435,549.92 - Step 4: Simplify right side
81,897,386.48x = 5,474,243,135,714,580 - Step 5: Solve for x
x = 5,474,243,135,714,580/81,897,386.48 - Step 6: Final answer
x = 66,842,708.55
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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.