Finding the Fourth Proportional to 28,060,617.12, 38,730,122.68 and 16,461,906.72
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Solution
The fourth proportional to 28,060,617.12, 38,730,122.68 and 16,461,906.72 is: 22,721,227.55
Step by Step Solution
- Step 1: Write the proportion equation
28,060,617.12 : 38,730,122.68 = 16,461,906.72 : x - Step 2: Convert to fraction form
28,060,617.12/38,730,122.68 = 16,461,906.72/x - Step 3: Cross multiply
28,060,617.12x = 38,730,122.68 × 16,461,906.72 - Step 4: Simplify right side
28,060,617.12x = 637,571,666,812,316.38 - Step 5: Solve for x
x = 637,571,666,812,316.38/28,060,617.12 - Step 6: Final answer
x = 22,721,227.55
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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.