Finding the Fourth Proportional to 28,387,838.74, 39,175,178.96 and 16,164,695.74
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Solution
The fourth proportional to 28,387,838.74, 39,175,178.96 and 16,164,695.74 is: 22,307,258.20
Step by Step Solution
- Step 1: Write the proportion equation
28,387,838.74 : 39,175,178.96 = 16,164,695.74 : x - Step 2: Convert to fraction form
28,387,838.74/39,175,178.96 = 16,164,695.74/x - Step 3: Cross multiply
28,387,838.74x = 39,175,178.96 × 16,164,695.74 - Step 4: Simplify right side
28,387,838.74x = 633,254,848,448,449.62 - Step 5: Solve for x
x = 633,254,848,448,449.62/28,387,838.74 - Step 6: Final answer
x = 22,307,258.20
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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.