Finding the Fourth Proportional to 317,871,823.70, 438,564,527.74 and 185,617,416.44
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Solution
The fourth proportional to 317,871,823.70, 438,564,527.74 and 185,617,416.44 is: 256,094,464.85
Step by Step Solution
- Step 1: Write the proportion equation
317,871,823.70 : 438,564,527.74 = 185,617,416.44 : x - Step 2: Convert to fraction form
317,871,823.70/438,564,527.74 = 185,617,416.44/x - Step 3: Cross multiply
317,871,823.70x = 438,564,527.74 × 185,617,416.44 - Step 4: Simplify right side
317,871,823.70x = 81,405,214,581,612,768 - Step 5: Solve for x
x = 81,405,214,581,612,768/317,871,823.70 - Step 6: Final answer
x = 256,094,464.85
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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.