Finding the Fourth Proportional to 103,708,921.94, 143,124,051.84 and 57,298,179.42
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Solution
The fourth proportional to 103,708,921.94, 143,124,051.84 and 57,298,179.42 is: 79,074,658.65
Step by Step Solution
- Step 1: Write the proportion equation
103,708,921.94 : 143,124,051.84 = 57,298,179.42 : x - Step 2: Convert to fraction form
103,708,921.94/143,124,051.84 = 57,298,179.42/x - Step 3: Cross multiply
103,708,921.94x = 143,124,051.84 × 57,298,179.42 - Step 4: Simplify right side
103,708,921.94x = 8,200,747,601,645,702 - Step 5: Solve for x
x = 8,200,747,601,645,702/103,708,921.94 - Step 6: Final answer
x = 79,074,658.65
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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.