Finding the Fourth Proportional to 19,159,374.80, 28,739,062.20 and 7,793,973.20
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Solution
The fourth proportional to 19,159,374.80, 28,739,062.20 and 7,793,973.20 is: 11,690,959.80
Step by Step Solution
- Step 1: Write the proportion equation
19,159,374.80 : 28,739,062.20 = 7,793,973.20 : x - Step 2: Convert to fraction form
19,159,374.80/28,739,062.20 = 7,793,973.20/x - Step 3: Cross multiply
19,159,374.80x = 28,739,062.20 × 7,793,973.20 - Step 4: Simplify right side
19,159,374.80x = 223,991,480,579,933.03 - Step 5: Solve for x
x = 223,991,480,579,933.03/19,159,374.80 - Step 6: Final answer
x = 11,690,959.80
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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.