Finding the Fourth Proportional to 108,403,446.96, 149,599,752.12 and 61,356,780.72
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Solution
The fourth proportional to 108,403,446.96, 149,599,752.12 and 61,356,780.72 is: 84,674,052.75
Step by Step Solution
- Step 1: Write the proportion equation
108,403,446.96 : 149,599,752.12 = 61,356,780.72 : x - Step 2: Convert to fraction form
108,403,446.96/149,599,752.12 = 61,356,780.72/x - Step 3: Cross multiply
108,403,446.96x = 149,599,752.12 × 61,356,780.72 - Step 4: Simplify right side
108,403,446.96x = 9,178,959,186,593,196 - Step 5: Solve for x
x = 9,178,959,186,593,196/108,403,446.96 - Step 6: Final answer
x = 84,674,052.75
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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.