Finding the Fourth Proportional to 28,502,585.98, 39,366,257.28 and 18,756,539.42
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Solution
The fourth proportional to 28,502,585.98, 39,366,257.28 and 18,756,539.42 is: 25,905,535.62
Step by Step Solution
- Step 1: Write the proportion equation
28,502,585.98 : 39,366,257.28 = 18,756,539.42 : x - Step 2: Convert to fraction form
28,502,585.98/39,366,257.28 = 18,756,539.42/x - Step 3: Cross multiply
28,502,585.98x = 39,366,257.28 × 18,756,539.42 - Step 4: Simplify right side
28,502,585.98x = 738,374,756,223,013.62 - Step 5: Solve for x
x = 738,374,756,223,013.62/28,502,585.98 - Step 6: Final answer
x = 25,905,535.62
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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.