Finding the Fourth Proportional to 28,560,227.05, 39,413,159.99 and 15,507,511.21
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Solution
The fourth proportional to 28,560,227.05, 39,413,159.99 and 15,507,511.21 is: 21,400,390.81
Step by Step Solution
- Step 1: Write the proportion equation
28,560,227.05 : 39,413,159.99 = 15,507,511.21 : x - Step 2: Convert to fraction form
28,560,227.05/39,413,159.99 = 15,507,511.21/x - Step 3: Cross multiply
28,560,227.05x = 39,413,159.99 × 15,507,511.21 - Step 4: Simplify right side
28,560,227.05x = 611,200,020,366,448.50 - Step 5: Solve for x
x = 611,200,020,366,448.50/28,560,227.05 - Step 6: Final answer
x = 21,400,390.81
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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.