Finding the Fourth Proportional to 28,825,767.24, 39,780,451.14 and 15,773,576.28
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Solution
The fourth proportional to 28,825,767.24, 39,780,451.14 and 15,773,576.28 is: 21,768,023.56
Step by Step Solution
- Step 1: Write the proportion equation
28,825,767.24 : 39,780,451.14 = 15,773,576.28 : x - Step 2: Convert to fraction form
28,825,767.24/39,780,451.14 = 15,773,576.28/x - Step 3: Cross multiply
28,825,767.24x = 39,780,451.14 × 15,773,576.28 - Step 4: Simplify right side
28,825,767.24x = 627,479,980,509,603 - Step 5: Solve for x
x = 627,479,980,509,603/28,825,767.24 - Step 6: Final answer
x = 21,768,023.56
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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.