Finding the Fourth Proportional to 51,238,678.36, 70,702,392.88 and 30,607,745.08
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Solution
The fourth proportional to 51,238,678.36, 70,702,392.88 and 30,607,745.08 is: 42,234,516.72
Step by Step Solution
- Step 1: Write the proportion equation
51,238,678.36 : 70,702,392.88 = 30,607,745.08 : x - Step 2: Convert to fraction form
51,238,678.36/70,702,392.88 = 30,607,745.08/x - Step 3: Cross multiply
51,238,678.36x = 70,702,392.88 × 30,607,745.08 - Step 4: Simplify right side
51,238,678.36x = 2,164,040,817,817,046.75 - Step 5: Solve for x
x = 2,164,040,817,817,046.75/51,238,678.36 - Step 6: Final answer
x = 42,234,516.72
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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.