Finding the Fourth Proportional to 5,178,040.74, 7,146,226.35 and 3,113,726.58
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Solution
The fourth proportional to 5,178,040.74, 7,146,226.35 and 3,113,726.58 is: 4,297,261.46
Step by Step Solution
- Step 1: Write the proportion equation
5,178,040.74 : 7,146,226.35 = 3,113,726.58 : x - Step 2: Convert to fraction form
5,178,040.74/7,146,226.35 = 3,113,726.58/x - Step 3: Cross multiply
5,178,040.74x = 7,146,226.35 × 3,113,726.58 - Step 4: Simplify right side
5,178,040.74x = 22,251,394,932,691.38 - Step 5: Solve for x
x = 22,251,394,932,691.38/5,178,040.74 - Step 6: Final answer
x = 4,297,261.46
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1.5x scale
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.