Finding the Fourth Proportional to 27,708,479.59, 38,236,058.43 and 15,317,834.09
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Solution
The fourth proportional to 27,708,479.59, 38,236,058.43 and 15,317,834.09 is: 21,137,702.53
Step by Step Solution
- Step 1: Write the proportion equation
27,708,479.59 : 38,236,058.43 = 15,317,834.09 : x - Step 2: Convert to fraction form
27,708,479.59/38,236,058.43 = 15,317,834.09/x - Step 3: Cross multiply
27,708,479.59x = 38,236,058.43 × 15,317,834.09 - Step 4: Simplify right side
27,708,479.59x = 585,693,599,133,400.12 - Step 5: Solve for x
x = 585,693,599,133,400.12/27,708,479.59 - Step 6: Final answer
x = 21,137,702.53
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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.