Finding the Fourth Proportional to 28,139,668.44, 38,832,725.34 and 15,262,612.44
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Solution
The fourth proportional to 28,139,668.44, 38,832,725.34 and 15,262,612.44 is: 21,062,395.89
Step by Step Solution
- Step 1: Write the proportion equation
28,139,668.44 : 38,832,725.34 = 15,262,612.44 : x - Step 2: Convert to fraction form
28,139,668.44/38,832,725.34 = 15,262,612.44/x - Step 3: Cross multiply
28,139,668.44x = 38,832,725.34 × 15,262,612.44 - Step 4: Simplify right side
28,139,668.44x = 592,688,836,853,387.25 - Step 5: Solve for x
x = 592,688,836,853,387.25/28,139,668.44 - Step 6: Final answer
x = 21,062,395.89
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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.