Finding the Fourth Proportional to 216,806,881.92, 299,199,487.68 and 122,713,549.44
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Solution
The fourth proportional to 216,806,881.92, 299,199,487.68 and 122,713,549.44 is: 169,348,088.95
Step by Step Solution
- Step 1: Write the proportion equation
216,806,881.92 : 299,199,487.68 = 122,713,549.44 : x - Step 2: Convert to fraction form
216,806,881.92/299,199,487.68 = 122,713,549.44/x - Step 3: Cross multiply
216,806,881.92x = 299,199,487.68 × 122,713,549.44 - Step 4: Simplify right side
216,806,881.92x = 36,715,831,123,842,352 - Step 5: Solve for x
x = 36,715,831,123,842,352/216,806,881.92 - Step 6: Final answer
x = 169,348,088.95
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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.