Finding the Fourth Proportional to 122,440,124.41, 168,967,371.74 and 67,435,980.91
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Solution
The fourth proportional to 122,440,124.41, 168,967,371.74 and 67,435,980.91 is: 93,061,653.68
Step by Step Solution
- Step 1: Write the proportion equation
122,440,124.41 : 168,967,371.74 = 67,435,980.91 : x - Step 2: Convert to fraction form
122,440,124.41/168,967,371.74 = 67,435,980.91/x - Step 3: Cross multiply
122,440,124.41x = 168,967,371.74 × 67,435,980.91 - Step 4: Simplify right side
122,440,124.41x = 11,394,480,454,311,916 - Step 5: Solve for x
x = 11,394,480,454,311,916/122,440,124.41 - Step 6: Final answer
x = 93,061,653.68
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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.