Finding the Fourth Proportional to 145,667,778.58, 201,019,188.18 and 79,586,857.54
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Solution
The fourth proportional to 145,667,778.58, 201,019,188.18 and 79,586,857.54 is: 109,828,581.51
Step by Step Solution
- Step 1: Write the proportion equation
145,667,778.58 : 201,019,188.18 = 79,586,857.54 : x - Step 2: Convert to fraction form
145,667,778.58/201,019,188.18 = 79,586,857.54/x - Step 3: Cross multiply
145,667,778.58x = 201,019,188.18 × 79,586,857.54 - Step 4: Simplify right side
145,667,778.58x = 15,998,485,492,488,114 - Step 5: Solve for x
x = 15,998,485,492,488,114/145,667,778.58 - Step 6: Final answer
x = 109,828,581.51
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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.