Finding the Third Proportional to 279,693,936 and 438,757,254
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Solution
The third proportional to 279,693,936 and 438,757,254 is: 688,280,663.82
Step by Step Solution
- Step 1: Write the proportion equation
279,693,936 : 438,757,254 = 438,757,254 : x - Step 2: Convert to fraction form
279,693,936/438,757,254 = 438,757,254/x - Step 3: Cross multiply
279,693,936x = 438,757,254 × 438,757,254 - Step 4: Simplify right side
279,693,936x = 192,507,927,937,620,512 - Step 5: Solve for x
x = 192,507,927,937,620,512/279,693,936 - Step 6: Final answer
x = 688,280,663.82
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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.