Finding the Fourth Proportional to 31,724,113.08, 43,779,195.18 and 17,237,425.08
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Solution
The fourth proportional to 31,724,113.08, 43,779,195.18 and 17,237,425.08 is: 23,787,602.67
Step by Step Solution
- Step 1: Write the proportion equation
31,724,113.08 : 43,779,195.18 = 17,237,425.08 : x - Step 2: Convert to fraction form
31,724,113.08/43,779,195.18 = 17,237,425.08/x - Step 3: Cross multiply
31,724,113.08x = 43,779,195.18 × 17,237,425.08 - Step 4: Simplify right side
31,724,113.08x = 754,640,596,977,947 - Step 5: Solve for x
x = 754,640,596,977,947/31,724,113.08 - Step 6: Final answer
x = 23,787,602.67
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1.5x scale
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.