Finding the Fourth Proportional to 19,385,338.77, 26,753,029.11 and 11,128,073.63
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Solution
The fourth proportional to 19,385,338.77, 26,753,029.11 and 11,128,073.63 is: 15,357,465.82
Step by Step Solution
- Step 1: Write the proportion equation
19,385,338.77 : 26,753,029.11 = 11,128,073.63 : x - Step 2: Convert to fraction form
19,385,338.77/26,753,029.11 = 11,128,073.63/x - Step 3: Cross multiply
19,385,338.77x = 26,753,029.11 × 11,128,073.63 - Step 4: Simplify right side
19,385,338.77x = 297,709,677,627,848.19 - Step 5: Solve for x
x = 297,709,677,627,848.19/19,385,338.77 - Step 6: Final answer
x = 15,357,465.82
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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.