Finding the Fourth Proportional to 145,768,661.48, 201,163,143.66 and 87,036,458.96
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Solution
The fourth proportional to 145,768,661.48, 201,163,143.66 and 87,036,458.96 is: 120,111,740.89
Step by Step Solution
- Step 1: Write the proportion equation
145,768,661.48 : 201,163,143.66 = 87,036,458.96 : x - Step 2: Convert to fraction form
145,768,661.48/201,163,143.66 = 87,036,458.96/x - Step 3: Cross multiply
145,768,661.48x = 201,163,143.66 × 87,036,458.96 - Step 4: Simplify right side
145,768,661.48x = 17,508,527,697,428,172 - Step 5: Solve for x
x = 17,508,527,697,428,172/145,768,661.48 - Step 6: Final answer
x = 120,111,740.89
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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.