Finding the Fourth Proportional to 28,254,955.68, 38,987,148.42 and 16,650,944.28
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Solution
The fourth proportional to 28,254,955.68, 38,987,148.42 and 16,650,944.28 is: 22,975,538.99
Step by Step Solution
- Step 1: Write the proportion equation
28,254,955.68 : 38,987,148.42 = 16,650,944.28 : x - Step 2: Convert to fraction form
28,254,955.68/38,987,148.42 = 16,650,944.28/x - Step 3: Cross multiply
28,254,955.68x = 38,987,148.42 × 16,650,944.28 - Step 4: Simplify right side
28,254,955.68x = 649,172,835,977,510 - Step 5: Solve for x
x = 649,172,835,977,510/28,254,955.68 - Step 6: Final answer
x = 22,975,538.99
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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.