Finding the Fourth Proportional to 128,465,745.68, 192,667,764.29 and 59,312,106.31
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Solution
The fourth proportional to 128,465,745.68, 192,667,764.29 and 59,312,106.31 is: 88,953,914.18
Step by Step Solution
- Step 1: Write the proportion equation
128,465,745.68 : 192,667,764.29 = 59,312,106.31 : x - Step 2: Convert to fraction form
128,465,745.68/192,667,764.29 = 59,312,106.31/x - Step 3: Cross multiply
128,465,745.68x = 192,667,764.29 × 59,312,106.31 - Step 4: Simplify right side
128,465,745.68x = 11,427,530,916,818,602 - Step 5: Solve for x
x = 11,427,530,916,818,602/128,465,745.68 - Step 6: Final answer
x = 88,953,914.18
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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.