Finding the Fourth Proportional to 19,725,206.87, 27,218,427.65 and 10,903,466.39
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Solution
The fourth proportional to 19,725,206.87, 27,218,427.65 and 10,903,466.39 is: 15,045,480.28
Step by Step Solution
- Step 1: Write the proportion equation
19,725,206.87 : 27,218,427.65 = 10,903,466.39 : x - Step 2: Convert to fraction form
19,725,206.87/27,218,427.65 = 10,903,466.39/x - Step 3: Cross multiply
19,725,206.87x = 27,218,427.65 × 10,903,466.39 - Step 4: Simplify right side
19,725,206.87x = 296,775,210,981,881.31 - Step 5: Solve for x
x = 296,775,210,981,881.31/19,725,206.87 - Step 6: Final answer
x = 15,045,480.28
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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.