Finding the Fourth Proportional to 27,816,877.19, 38,389,588.59 and 15,430,963.98
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Solution
The fourth proportional to 27,816,877.19, 38,389,588.59 and 15,430,963.98 is: 21,296,005.11
Step by Step Solution
- Step 1: Write the proportion equation
27,816,877.19 : 38,389,588.59 = 15,430,963.98 : x - Step 2: Convert to fraction form
27,816,877.19/38,389,588.59 = 15,430,963.98/x - Step 3: Cross multiply
27,816,877.19x = 38,389,588.59 × 15,430,963.98 - Step 4: Simplify right side
27,816,877.19x = 592,388,358,739,309 - Step 5: Solve for x
x = 592,388,358,739,309/27,816,877.19 - Step 6: Final answer
x = 21,296,005.11
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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.