Finding the Fourth Proportional to 19,389,728.68, 26,759,022.74 and 10,687,881.67
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Solution
The fourth proportional to 19,389,728.68, 26,759,022.74 and 10,687,881.67 is: 14,749,936.59
Step by Step Solution
- Step 1: Write the proportion equation
19,389,728.68 : 26,759,022.74 = 10,687,881.67 : x - Step 2: Convert to fraction form
19,389,728.68/26,759,022.74 = 10,687,881.67/x - Step 3: Cross multiply
19,389,728.68x = 26,759,022.74 × 10,687,881.67 - Step 4: Simplify right side
19,389,728.68x = 285,997,268,569,701.75 - Step 5: Solve for x
x = 285,997,268,569,701.75/19,389,728.68 - Step 6: Final answer
x = 14,749,936.59
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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.