Finding the Fourth Proportional to 27,687,498.60, 38,209,148.94 and 15,297,877.08
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Solution
The fourth proportional to 27,687,498.60, 38,209,148.94 and 15,297,877.08 is: 21,111,291.86
Step by Step Solution
- Step 1: Write the proportion equation
27,687,498.60 : 38,209,148.94 = 15,297,877.08 : x - Step 2: Convert to fraction form
27,687,498.60/38,209,148.94 = 15,297,877.08/x - Step 3: Cross multiply
27,687,498.60x = 38,209,148.94 × 15,297,877.08 - Step 4: Simplify right side
27,687,498.60x = 584,518,863,815,532.25 - Step 5: Solve for x
x = 584,518,863,815,532.25/27,687,498.60 - Step 6: Final answer
x = 21,111,291.86
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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.