Finding the Fourth Proportional to 28,934,176.02, 39,929,022.68 and 15,881,657.02
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Solution
The fourth proportional to 28,934,176.02, 39,929,022.68 and 15,881,657.02 is: 21,916,609.72
Step by Step Solution
- Step 1: Write the proportion equation
28,934,176.02 : 39,929,022.68 = 15,881,657.02 : x - Step 2: Convert to fraction form
28,934,176.02/39,929,022.68 = 15,881,657.02/x - Step 3: Cross multiply
28,934,176.02x = 39,929,022.68 × 15,881,657.02 - Step 4: Simplify right side
28,934,176.02x = 634,139,043,347,561.25 - Step 5: Solve for x
x = 634,139,043,347,561.25/28,934,176.02 - Step 6: Final answer
x = 21,916,609.72
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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.