Finding the Fourth Proportional to 28,387,588.53, 39,176,025.24 and 15,998,204.13
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Solution
The fourth proportional to 28,387,588.53, 39,176,025.24 and 15,998,204.13 is: 22,078,171.53
Step by Step Solution
- Step 1: Write the proportion equation
28,387,588.53 : 39,176,025.24 = 15,998,204.13 : x - Step 2: Convert to fraction form
28,387,588.53/39,176,025.24 = 15,998,204.13/x - Step 3: Cross multiply
28,387,588.53x = 39,176,025.24 × 15,998,204.13 - Step 4: Simplify right side
28,387,588.53x = 626,746,048,791,552.25 - Step 5: Solve for x
x = 626,746,048,791,552.25/28,387,588.53 - Step 6: Final answer
x = 22,078,171.53
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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.