Finding the Fourth Proportional to 55,886,345.56, 77,122,567.68 and 31,106,137.48
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Solution
The fourth proportional to 55,886,345.56, 77,122,567.68 and 31,106,137.48 is: 42,926,141.78
Step by Step Solution
- Step 1: Write the proportion equation
55,886,345.56 : 77,122,567.68 = 31,106,137.48 : x - Step 2: Convert to fraction form
55,886,345.56/77,122,567.68 = 31,106,137.48/x - Step 3: Cross multiply
55,886,345.56x = 77,122,567.68 × 31,106,137.48 - Step 4: Simplify right side
55,886,345.56x = 2,398,985,193,064,685 - Step 5: Solve for x
x = 2,398,985,193,064,685/55,886,345.56 - Step 6: Final answer
x = 42,926,141.78
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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.