Finding the Fourth Proportional to 19,031,218.68, 26,251,132.32 and 11,290,780.92
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Solution
The fourth proportional to 19,031,218.68, 26,251,132.32 and 11,290,780.92 is: 15,574,188.33
Step by Step Solution
- Step 1: Write the proportion equation
19,031,218.68 : 26,251,132.32 = 11,290,780.92 : x - Step 2: Convert to fraction form
19,031,218.68/26,251,132.32 = 11,290,780.92/x - Step 3: Cross multiply
19,031,218.68x = 26,251,132.32 × 11,290,780.92 - Step 4: Simplify right side
19,031,218.68x = 296,395,783,927,051.31 - Step 5: Solve for x
x = 296,395,783,927,051.31/19,031,218.68 - Step 6: Final answer
x = 15,574,188.33
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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.