Finding the Fourth Proportional to 19,643,895.24, 27,098,828.37 and 13,126,263.45
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Solution
The fourth proportional to 19,643,895.24, 27,098,828.37 and 13,126,263.45 is: 18,107,730.47
Step by Step Solution
- Step 1: Write the proportion equation
19,643,895.24 : 27,098,828.37 = 13,126,263.45 : x - Step 2: Convert to fraction form
19,643,895.24/27,098,828.37 = 13,126,263.45/x - Step 3: Cross multiply
19,643,895.24x = 27,098,828.37 × 13,126,263.45 - Step 4: Simplify right side
19,643,895.24x = 355,706,360,370,954.06 - Step 5: Solve for x
x = 355,706,360,370,954.06/19,643,895.24 - Step 6: Final answer
x = 18,107,730.47
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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.