Finding the Fourth Proportional to 19,478,877.93, 26,881,642.80 and 10,776,908.81
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Solution
The fourth proportional to 19,478,877.93, 26,881,642.80 and 10,776,908.81 is: 14,872,571.93
Step by Step Solution
- Step 1: Write the proportion equation
19,478,877.93 : 26,881,642.80 = 10,776,908.81 : x - Step 2: Convert to fraction form
19,478,877.93/26,881,642.80 = 10,776,908.81/x - Step 3: Cross multiply
19,478,877.93x = 26,881,642.80 × 10,776,908.81 - Step 4: Simplify right side
19,478,877.93x = 289,701,013,185,797.19 - Step 5: Solve for x
x = 289,701,013,185,797.19/19,478,877.93 - Step 6: Final answer
x = 14,872,571.93
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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.