Finding the Fourth Proportional to 145,667,342.44, 201,018,586.54 and 79,586,421.81
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Solution
The fourth proportional to 145,667,342.44, 201,018,586.54 and 79,586,421.81 is: 109,827,980.33
Step by Step Solution
- Step 1: Write the proportion equation
145,667,342.44 : 201,018,586.54 = 79,586,421.81 : x - Step 2: Convert to fraction form
145,667,342.44/201,018,586.54 = 79,586,421.81/x - Step 3: Cross multiply
145,667,342.44x = 201,018,586.54 × 79,586,421.81 - Step 4: Simplify right side
145,667,342.44x = 15,998,350,020,022,428 - Step 5: Solve for x
x = 15,998,350,020,022,428/145,667,342.44 - Step 6: Final answer
x = 109,827,980.33
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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.