Finding the Fourth Proportional to 28,489,850.69, 39,316,130.82 and 15,437,106.14
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Solution
The fourth proportional to 28,489,850.69, 39,316,130.82 and 15,437,106.14 is: 21,303,280.64
Step by Step Solution
- Step 1: Write the proportion equation
28,489,850.69 : 39,316,130.82 = 15,437,106.14 : x - Step 2: Convert to fraction form
28,489,850.69/39,316,130.82 = 15,437,106.14/x - Step 3: Cross multiply
28,489,850.69x = 39,316,130.82 × 15,437,106.14 - Step 4: Simplify right side
28,489,850.69x = 606,927,284,651,153.38 - Step 5: Solve for x
x = 606,927,284,651,153.38/28,489,850.69 - Step 6: Final answer
x = 21,303,280.64
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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.