Finding the Fourth Proportional to 216,806,889.92, 299,199,498.72 and 122,713,557.44
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Solution
The fourth proportional to 216,806,889.92, 299,199,498.72 and 122,713,557.44 is: 169,348,099.99
Step by Step Solution
- Step 1: Write the proportion equation
216,806,889.92 : 299,199,498.72 = 122,713,557.44 : x - Step 2: Convert to fraction form
216,806,889.92/299,199,498.72 = 122,713,557.44/x - Step 3: Cross multiply
216,806,889.92x = 299,199,498.72 × 122,713,557.44 - Step 4: Simplify right side
216,806,889.92x = 36,715,834,872,195,928 - Step 5: Solve for x
x = 36,715,834,872,195,928/216,806,889.92 - Step 6: Final answer
x = 169,348,099.99
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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.