Finding the Fourth Proportional to 81,735,447.68, 122,533,731.26 and 38,041,579.61
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Solution
The fourth proportional to 81,735,447.68, 122,533,731.26 and 38,041,579.61 is: 57,030,050.30
Step by Step Solution
- Step 1: Write the proportion equation
81,735,447.68 : 122,533,731.26 = 38,041,579.61 : x - Step 2: Convert to fraction form
81,735,447.68/122,533,731.26 = 38,041,579.61/x - Step 3: Cross multiply
81,735,447.68x = 122,533,731.26 × 38,041,579.61 - Step 4: Simplify right side
81,735,447.68x = 4,661,376,691,834,758 - Step 5: Solve for x
x = 4,661,376,691,834,758/81,735,447.68 - Step 6: Final answer
x = 57,030,050.30
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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.