Finding the Fourth Proportional to 28,775,675.08, 39,709,249.95 and 15,723,382.06
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Solution
The fourth proportional to 28,775,675.08, 39,709,249.95 and 15,723,382.06 is: 21,697,621.57
Step by Step Solution
- Step 1: Write the proportion equation
28,775,675.08 : 39,709,249.95 = 15,723,382.06 : x - Step 2: Convert to fraction form
28,775,675.08/39,709,249.95 = 15,723,382.06/x - Step 3: Cross multiply
28,775,675.08x = 39,709,249.95 × 15,723,382.06 - Step 4: Simplify right side
28,775,675.08x = 624,363,708,279,886 - Step 5: Solve for x
x = 624,363,708,279,886/28,775,675.08 - Step 6: Final answer
x = 21,697,621.57
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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.