Finding the Fourth Proportional to 28,924,813.92, 39,916,132.74 and 15,872,291.04
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Solution
The fourth proportional to 28,924,813.92, 39,916,132.74 and 15,872,291.04 is: 21,903,701.02
Step by Step Solution
- Step 1: Write the proportion equation
28,924,813.92 : 39,916,132.74 = 15,872,291.04 : x - Step 2: Convert to fraction form
28,924,813.92/39,916,132.74 = 15,872,291.04/x - Step 3: Cross multiply
28,924,813.92x = 39,916,132.74 × 15,872,291.04 - Step 4: Simplify right side
28,924,813.92x = 633,560,476,040,552.62 - Step 5: Solve for x
x = 633,560,476,040,552.62/28,924,813.92 - Step 6: Final answer
x = 21,903,701.02
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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.