Finding the Fourth Proportional to 22,696,681.68, 31,321,374.84 and 12,383,398.80
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Solution
The fourth proportional to 22,696,681.68, 31,321,374.84 and 12,383,398.80 is: 17,089,065.31
Step by Step Solution
- Step 1: Write the proportion equation
22,696,681.68 : 31,321,374.84 = 12,383,398.80 : x - Step 2: Convert to fraction form
22,696,681.68/31,321,374.84 = 12,383,398.80/x - Step 3: Cross multiply
22,696,681.68x = 31,321,374.84 × 12,383,398.80 - Step 4: Simplify right side
22,696,681.68x = 387,865,075,608,006.19 - Step 5: Solve for x
x = 387,865,075,608,006.19/22,696,681.68 - Step 6: Final answer
x = 17,089,065.31
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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.