Finding the Fourth Proportional to 19,905,639.84, 29,801,182.08 and 17,828,558.40
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Solution
The fourth proportional to 19,905,639.84, 29,801,182.08 and 17,828,558.40 is: 26,691,536.64
Step by Step Solution
- Step 1: Write the proportion equation
19,905,639.84 : 29,801,182.08 = 17,828,558.40 : x - Step 2: Convert to fraction form
19,905,639.84/29,801,182.08 = 17,828,558.40/x - Step 3: Cross multiply
19,905,639.84x = 29,801,182.08 × 17,828,558.40 - Step 4: Simplify right side
19,905,639.84x = 531,312,115,102,313.38 - Step 5: Solve for x
x = 531,312,115,102,313.38/19,905,639.84 - Step 6: Final answer
x = 26,691,536.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.