Finding the Fourth Proportional to 19,125,346.19, 26,403,069.42 and 15,363,410.94
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Solution
The fourth proportional to 19,125,346.19, 26,403,069.42 and 15,363,410.94 is: 21,209,613.76
Step by Step Solution
- Step 1: Write the proportion equation
19,125,346.19 : 26,403,069.42 = 15,363,410.94 : x - Step 2: Convert to fraction form
19,125,346.19/26,403,069.42 = 15,363,410.94/x - Step 3: Cross multiply
19,125,346.19x = 26,403,069.42 × 15,363,410.94 - Step 4: Simplify right side
19,125,346.19x = 405,641,205,576,807.44 - Step 5: Solve for x
x = 405,641,205,576,807.44/19,125,346.19 - Step 6: Final answer
x = 21,209,613.76
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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.