Finding the Fourth Proportional to 20,776,480.80, 31,129,291.80 and 17,729,552.40
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Solution
The fourth proportional to 20,776,480.80, 31,129,291.80 and 17,729,552.40 is: 26,564,095.02
Step by Step Solution
- Step 1: Write the proportion equation
20,776,480.80 : 31,129,291.80 = 17,729,552.40 : x - Step 2: Convert to fraction form
20,776,480.80/31,129,291.80 = 17,729,552.40/x - Step 3: Cross multiply
20,776,480.80x = 31,129,291.80 × 17,729,552.40 - Step 4: Simplify right side
20,776,480.80x = 551,908,410,142,990.31 - Step 5: Solve for x
x = 551,908,410,142,990.31/20,776,480.80 - Step 6: Final answer
x = 26,564,095.02
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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.