Finding the Fourth Proportional to 282,078,685.98, 423,117,465.14 and 74,837,869.56
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Solution
The fourth proportional to 282,078,685.98, 423,117,465.14 and 74,837,869.56 is: 112,256,654.75
Step by Step Solution
- Step 1: Write the proportion equation
282,078,685.98 : 423,117,465.14 = 74,837,869.56 : x - Step 2: Convert to fraction form
282,078,685.98/423,117,465.14 = 74,837,869.56/x - Step 3: Cross multiply
282,078,685.98x = 423,117,465.14 × 74,837,869.56 - Step 4: Simplify right side
282,078,685.98x = 31,665,209,664,892,260 - Step 5: Solve for x
x = 31,665,209,664,892,260/282,078,685.98 - Step 6: Final answer
x = 112,256,654.75
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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.