Finding the Fourth Proportional to 28,387,831.24, 39,175,168.62 and 16,164,688.24
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Solution
The fourth proportional to 28,387,831.24, 39,175,168.62 and 16,164,688.24 is: 22,307,247.85
Step by Step Solution
- Step 1: Write the proportion equation
28,387,831.24 : 39,175,168.62 = 16,164,688.24 : x - Step 2: Convert to fraction form
28,387,831.24/39,175,168.62 = 16,164,688.24/x - Step 3: Cross multiply
28,387,831.24x = 39,175,168.62 × 16,164,688.24 - Step 4: Simplify right side
28,387,831.24x = 633,254,387,491,731 - Step 5: Solve for x
x = 633,254,387,491,731/28,387,831.24 - Step 6: Final answer
x = 22,307,247.85
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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.