Finding the Fourth Proportional to 279,564,254.31, 385,799,840.16 and 154,113,696.99
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Solution
The fourth proportional to 279,564,254.31, 385,799,840.16 and 154,113,696.99 is: 212,677,546.39
Step by Step Solution
- Step 1: Write the proportion equation
279,564,254.31 : 385,799,840.16 = 154,113,696.99 : x - Step 2: Convert to fraction form
279,564,254.31/385,799,840.16 = 154,113,696.99/x - Step 3: Cross multiply
279,564,254.31x = 385,799,840.16 × 154,113,696.99 - Step 4: Simplify right side
279,564,254.31x = 59,457,039,665,208,680 - Step 5: Solve for x
x = 59,457,039,665,208,680/279,564,254.31 - Step 6: Final answer
x = 212,677,546.39
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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.