Finding the Fourth Proportional to 128,465,747.18, 192,667,766.53 and 59,312,107.81
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Solution
The fourth proportional to 128,465,747.18, 192,667,766.53 and 59,312,107.81 is: 88,953,916.44
Step by Step Solution
- Step 1: Write the proportion equation
128,465,747.18 : 192,667,766.53 = 59,312,107.81 : x - Step 2: Convert to fraction form
128,465,747.18/192,667,766.53 = 59,312,107.81/x - Step 3: Cross multiply
128,465,747.18x = 192,667,766.53 × 59,312,107.81 - Step 4: Simplify right side
128,465,747.18x = 11,427,531,339,939,270 - Step 5: Solve for x
x = 11,427,531,339,939,270/128,465,747.18 - Step 6: Final answer
x = 88,953,916.44
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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.